Stitcher Geralf [Commander 2014] BW99 You can only use each

You can only use each effect of "Adamancipator Researcher" once per turn

During each of your End Phase destroy this card unless you send 1 "Iron Core of Koa'ki Meiru" or 1 "Koa'ki Meiru" monster from your hand to the Graveyard

Set: Ancient Sanctuary Card type: Effect Monster Rarity: Common Attack: 200 Defense: 500 FLIP: Select 1 monster on your opponent''s side of the field and destroy it

Set: Sun & Moon: Shining Legends Type: Lightning Rarity: Ultra Rare Retreat cost: Colorless

In that case

Stitcher Geralf [Commander 2014] BW99 You can only use eachSet: Commander 2014 Type: Legendary Creature Human Wizard Rarity: Mythic Cost: {3}{U}{U} {2}{U}, {T}: Each player mills three cards. Exile up to two creature cards put into graveyards this way. Create an X X blue Zombie creature token, where X is the total power of the cards exiled this way.