Sakashima the Impostor [Mystery Booster] Oathbreaker Set: Ixalan Prerelease Promos Type:

Set: Ixalan Prerelease Promos Type: Creature — Dinosaur Avatar Rarity: Rare Cost: {5}{G}{G} Whenever Verdant Sun's Avatar or another creature enters the battlefield under your control

At the beginning of your end step

Set: Weatherlight Type: Instant Rarity: Rare Cost: {1}{W}{W} Regenerate target creature

Then those intruders who were still standing turned and fled

Sakashima the Impostor [Mystery Booster] Oathbreaker Set: Ixalan Prerelease Promos Type:Set: Mystery Booster Type: Legendary Creature Human Rogue Rarity: Rare Cost: {2}{U}{U} You may have Sakashima the Impostor enter the battlefield as a copy of any creature on the battlefield, except its name is Sakashima the Impostor, it's legendary in addition to its other types, and it has "{2}{U}{U}: Return this creature to its owner's hand at the beginning of the next end step."