Overcharged Amalgam

If you counter a delayed triggered ability that triggers at the beginning of the “next” occurrence of a specified step or phase, that ability won’t trigger again the following time that phase or step occurs.

Abilities that create replacement effects, such as a permanent entering tapped or with counters on it, can’t be targeted. Abilities that apply “as [this creature] enters” are also replacement effects and can’t be targeted.

Triggered abilities use the word “when,” “whenever,” or “at.” They’re often written as “[Trigger condition], [effect].” Some keyword abilities, such as prowess and fabricate, are triggered abilities and will have “when,” “whenever,” or “at” in their reminder text.