Concentrating

Some spells or abilities have ongoing effects that only persist as long as the caster maintains focus on the effect. 

• A concentrating creature maintains an ongoing effect. If concentration ends, so does the linked effect.

• If a concentrating creature starts concentrating on a different effect, they stop concentrating on the first effect.

• When a concentrating creature takes damage, they must succeed on a constitution saving throw, with a DC equal to 10 or half the damage they took rounded down (whichever is higher) or lose their concentration.

• If a concentrating creature becomes incapacitated, they lose their concentration.