Why is "golden armor + phoenix kit" in Apex showing only the bigger one?

The two regen sources share the same stack group: the game only applies the highest-rate regen, not their sum. The tool correctly applies mutual exclusion.

Is additive vs multiplicative damage important?

Additive damage bonuses (perks) are stronger at low stack counts; multiplicative ones (attachments) scale super-linearly. Confusing the two is a common pro scrim math mistake.

Does the tool show over-cap losses?

Yes — the final result has a red "Lost X% to Hard Cap" line. This is useful for comparing Fortnite mythic damage vs regular damage loadouts.

Can I save a stack preset?

Yes: after building a stack, click the orange Save Preset in the bottom-right. It auto-loads on next visit via localStorage.

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Numeric Stack & Damage Calculators

Buff Stack Simulator & Checker

Drag-and-drop perk, attachment, armor, and consumable cards to visualize final damage, healing, or speed multiplier with cap detection.

Multiplier StackCap DetectionDrag & Drop🎮 Call of Duty🎮 Apex Legends🎮 Fortnite🎮 Valorant🎮 Minecraft

✨ Live interactive preview below

GameStack Type

FINAL MULTIPLIER

×1.000

▲ 0.0% vs baseline

Final = (1 + Σadditive(0%)) × Πmultiplicative(×1.000)
     = (1 + 0.00) × 1.000 = ×1.000

Step 1 — Select Game & Base Action. Pick the game then select whether you are calculating Damage, Healing, Movement Speed, or Defense.
Step 2 — Add Multiplier Sources. Click any source chip on the left (Perk, Attachment, Armor, Ability, Consumable) to add it to the stack.
Step 3 — Check Cap & Conflicts. Yellow warnings indicate source conflicts; red bars indicate hard-cap ceiling reached before source applies.
Step 4 — Print Final Multiplier Card. Export the stack result as a cheat sheet to clip onto your mouse pad sleeve.