Ambiguity

, : Return target permanent you control to its owner's hand.

This creature enters with two +1/+1 counters on it. Whenever this creature attacks or blocks, remove a +1/+1 counter from it at end of combat.

This land enters tapped. : Add . , : Put an eon counter on this land. Skip your next turn. , Remove an eon counter from this land and return it to its owner's hand: Take an extra turn after this one.

Whenever a permanent you control enters tapped, untap it.

Whenever a player plays a spell that counters a spell that has been played or a player plays a spell that comes into play with counters, that player may counter the next spell played or put an additional counter on a permanent that has already been played, but not countered.