pokemon cards ultra premium collection charizard - - Sealed Pack of 3 Promo ex has an awe Pokemon TCG Charizard ex Super

Unyielding Gatekeeper was first released in the set Murders at Karlov Manor, illustrated by Borja Pindado

Sure they will keep their Sylvan Caryatid, but it will kill their giant monster that they are trying to beat you with

You occasioanlly have to mulligan hands containing Opt or Gitaxian Probe which you might not have had to if you knew what the card you were going to draw was

2/1 Illustrated by Cole Eastburn Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp

Activated abilities dont trigger effects like magecraft, and their costs arent reduced by cards like The Immortal Sun

Ill let you decide on that one