# Trip Attack *Source: Player's Handbook (2024) p. 95* When you hit a creature with an attack roll using a weapon or an [Unarmed Strike](Mechanics/CLI/rules/variant-rules/unarmed-strike-xphb.md), you can expend one Superiority Die and add the die to the attack's damage roll. If the target is Large or smaller, it must succeed on a Strength saving throw or have the [Prone](Mechanics/CLI/rules/conditions.md#Prone) condition.