Armory Mice
Celebration — This creature gets +0/+2 as long as two or more nonland permanents entered the battlefield under your control this turn.
They help ensure that the forges of the dwarves are always squeaky clean.
Illustrated by Chris Seaman
This printing
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Others are static abilities that give creatures abilities or power and toughness increases as long as two or more nonland permanents entered the battlefield under your control that turn.
The permanents that entered the battlefield don't need to remain on the battlefield or under your control. Celebration abilities are checking for past events, not the current game state.
Some celebration abilities trigger at specific parts of the turn and check whether two or more nonland permanents entered the battlefield under your control already in that turn.
Each celebration ability has a different effect.
Celebration abilities only care if two or more nonland permanents entered the battlefield under your control in a turn. They won't get more powerful if more than two permanents entered the battlefield under your control in a turn.
