Saltskitter

Creature - Wurm 3/4, 3W (4)
Whenever another creature enters the battlefield, exile Saltskitter. Return Saltskitter to the battlefield under its owner's control at the beginning of the next end step.¹
Illus. Chippy

Gatherer Card Rulings [Nov 2009]

• 5/1/2007: If a creature enters the battlefield after "at the beginning of the end step" abilities have triggered during that turn, Saltskitter won't return to the battlefield until the end of the following turn.

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/9)	Future Sight (Common)