Does Ezuri, Claw of Progress trigger off of base power and toughness or the power after a creature resolves fully? For example, Triskelion or Plaxcaster Frogling have a base power that would trigger Ezuri's main ability, but they both enter the battlefield with enough counters to no longer causes the ability to trigger. Same goes with cards like Master Biomancer that causes creatures to ETB with X extra counters. How does his ability interact with abilities like the ones of these cards?
Ezuri, Claw of Progress looks at the creature's power when it actually hits the battlefield. That takes into account all replacement effects (such as Triskelion, Plaxcaster Frogling, and Master Biomancer) as well as continuous effects (such as Gaea's Anthem). It does not take into effect changes after the creature hits the board, even if that change is the result of an ETB trigger (such as Bane of Progress), since the creature has its base P/T while waiting for the trigger to resolve.
Two Score, Minus Two or: A Stargate Tail
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