Wizard101 Damage Calculator (Spell Damage, Boosts, Pierce and Resist)

1. Pick the curve constants. PvE April 2021 is the default. Pick PvP for duels or Custom for your own numbers.
2. Enter the base damage from the card, then your damage stat, the enemy resist and your pierce.
3. Add your blades and traps as lists such as 35, 35. Leave the optional fields at 0 if they do not apply.

Here is what each result means:

The damage curve is the rule that turns your damage stat into a multiplier. It was added to Wizard101 in the Spring 2021 update.

Below a set point, called the knee or intersection, one stat point still gives one percent. Above it, each point gives less. KingsIsle lead designer Ratbeard described this in the April 2021 Meta Mayhem dev diary and gave starting values for PvE and PvP.

Resist uses the same type of curve with different numbers. Pierce was left unchanged in that update, but it is applied to resist before the curve.

This is why adding stats is not enough to predict a hit. A wizard with 250 damage does not deal 2.5 times base damage after the curve.

The calculator multiplies the steps in a fixed order. The order follows a KingsIsle developer post that players shared on the official forum.

1. Run your damage stat through the damage curve and add 1 to get the outgoing multiplier.
2. Multiply the base damage by it, then add flat damage.
3. Multiply by every blade, trap and boost. Each one multiplies, so 35 and 30 percent make x1.755, not x1.65.
4. Spend pierce on enemy auras first, then wards, then resist. Reduce each by the pierce it receives.
5. Subtract flat resist, then multiply by 1 minus the resist curve output. Finally apply the critical multiplier.

Take a PvE hit with a card that deals 1,000 base damage. The wizard has 180 damage, 25 pierce, one 35 percent blade and one 30 percent trap. The enemy has 90 resist.

Outgoing multiplier: 180 is above the PvE knee of 150, so the curve gives 1.688, and the multiplier is x2.688. Resist after pierce: 90 - 25 = 65, which is below the resist knee of 100, so the incoming multiplier is 1 - 0.65 = 0.35.

Buffs: 1.35 x 1.30 = x1.755. Final damage: 1,000 x 2.688 x 1.755 x 0.35 = 1,651.

The stat part alone is 2.688 x 0.35 = 0.9410. That matches the 0.9408 total that the Final Bastion article prints for the same case, so the curve code agrees with the published example.

If the same hit lands a critical against an enemy with no block, the x2 multiplier makes it 3,303.

Five factors decide most hits. Two of them depend on the curve.

Damage Stat Versus the Knee

Below the knee, every point is worth a full 1 percent. Above it, the value drops fast. With the PvE April 2021 set, 100 damage gives x2.000, 150 gives x2.500 and 200 gives x2.773.

Enemy Resist and Your Pierce

Pierce subtracts from resist before the curve. If your pierce is higher than the resist, the extra pierce adds nothing, because resist cannot go below 0.

Blades and Traps

These multiply with each other and with your stat. Two 35 percent blades and one 30 percent trap give x2.369. The April 2021 notes standardized school blades at +35 percent and traps at +30 percent.

Critical Hits

A landed critical multiplies the hit by up to 2, less if the enemy has block. Use the multiplier from a critical calculation, and enter 1 when the hit is not a critical.

Flat Damage and Flat Resist

Flat amounts are small beside percent boosts, but they matter for cheap spells. The order of flat steps comes from a 2019 developer post and may be out of date.

The developers set different curve numbers for PvE and PvP. The table lists the sets in this calculator.

The PvP damage knee differs between the April 2021 dev diary (100) and the Final Bastion calculator script (125). The script is dated 17 April 2021, so it may reflect a change made during the test realm. The calculator offers both so you can compare.

Here is the PvE damage curve against the old linear rule:

These rows are computed from the same code as the tool. They are not live game data.

Comparing Gear

Enter two damage stats and see how much the curve changes the gain. Past the knee, a resist or pierce item may beat a damage item.

Planning a Blade and Trap Stack

List each blade and trap to see the total multiplier. This helps you decide whether one more blade is worth a card slot.

Testing Pierce Against a Boss

Enter the boss resist and try different pierce values. The step table shows where pierce stops helping.

Choosing a Pet Talent

Compare a damage talent with a critical talent using this page and the critical calculator. The pet talent chance calculator shows the odds of rolling a talent.

1. Adding Blades and Traps

A 35 percent blade and a 30 percent trap do not make 65 percent. They make 75.5 percent because the boosts multiply.

2. Treating Damage as Linear Forever

Past the knee, 10 more damage gives less than 10 percent more outgoing damage. Check the verdict line before buying more damage.

3. Forgetting That Pierce Hits Auras and Wards First

If the enemy has a ward, part of your pierce goes there before it reaches resist.

4. Using PvE Constants in PvP

PvP uses different knees and limits. Switch the constant set before you compare duels.

5. Trusting Old Numbers

The constants date from April 2021. If your in-game numbers differ, use Custom and enter the knee and limit you see.

The math is exact for the model, but the model rests on 2021 sources and one community script.

When the number on your screen differs from this page, assume the constants changed first and test with Custom.

For the idea behind expected hits, read expected value explained. For crit odds in general, read how to calculate crit chance and damage, and browse the Wizard101 calculators.

Start with the card damage, apply your damage stat through the curve, add flat damage, then multiply by blades, traps and boosts. Pierce then cuts auras, wards and resist, and the resist multiplier is applied last, followed by any critical.

With the April 2021 PvE values, it starts at 150 damage. Up to 150, each point is worth 1 percent. Above it, each point is worth less, and the extra damage approaches a limit of 200 percent.

The April 2021 notes give a practical limit of +200 percent, so the outgoing multiplier approaches x3. No official page read today states whether the live limit is still 200.

They multiply. A 35 percent blade and a 30 percent trap give x1.755 together. Players also report that the game rounds inside the chain, which this calculator does not copy.

Pierce is subtracted from the enemy resist before the resist curve is applied. If the enemy has 90 resist and you have 25 pierce, the curve sees 65. Extra pierce above the resist adds nothing.

Per the Final Bastion analysis, pierce affects auras first, then shields, then resist. The tool follows that order for the optional aura and ward fields.

The developers use different knees and limits. In April 2021 the PvP damage knee was 100 and the PvP resist limit was 70, compared with 150 and 125 for PvE. Pick the set that matches your match type.

The constants may have changed, the game rounds inside the chain, and damage on a card can vary within a range. Use the Custom set to test the numbers you see in game.

No official calculator was found. The developers published the knee and limit values in a dev diary and credited Final Bastion for help with the formula, and Final Bastion runs a fan calculator.

Enter the multiplier in the critical field, up to 2. The critical calculator on this site gives the PvE multiplier from your critical rating and the enemy block.

• Meta Mayhem dev diary, April 2021 (KingsIsle, archived copy because the original page no longer loads). Knee and limit table; pierce before resist.
• Damage, Resist, and Pierce: Spring 2021 (Final Bastion, 15 April 2021). Curve form, published examples, pierce order.
• W101 Damage Resist Pierce Calculator (Final Bastion). Public page script used for the k and n formulas and the PvP 125 knee.
• How is damage calculated? (forum thread) (Wizard101 message boards, 2019). A KingsIsle developer post on the order of steps, shared by a player.
• Damage calculations (forum thread) (Wizard101 message boards). Player reports of rounding inside the blade and trap chain.