Evolving Adaptive

Whenever another creature enters the battlefield under your control, check its power and toughness against the power and toughness of Evolving Adaptive. If neither stat of the new creature is greater, the last ability won't trigger at all.

When comparing the stats as the ability resolves, it's possible that the stat that's greater changes from power to toughness or vice versa. If this happens, the ability will still resolve and you'll put an oil counter on Evolving Adaptive. For example, if you control an Evolving Adaptive with two oil counters and a 1/3 creature enters the battlefield under your control, its toughness is greater so the ability will trigger. In response, the 1/3 creature gets +2/-2. When the ability tries to resolve, its power is greater. You'll put an oil counter on Evolving Adaptive.

When comparing the stats of the two creatures for Evolving Adaptive's last ability, you always compare power to power and toughness to toughness.