mtg nicol bolas cards Bolas, the Ravager | Promotional or planeswalker an opponent controls Nicol Bolas - MTG Wiki

A High Market in the manabase, or creatures that have sacrifice abilities, or just an Oketras Monument to provide cost reduction all things that can enable Skullclamp

Specially packaged versions of four of the top ranked decks used during the Magic World Championships, released by Wizards of the Coast for the years 1997 through 2004

Trouble in Pairs The plagiarized art is certainly a stain on Trouble in Pairss reputation, but plagiarism doesnt change the cards effect

Everyone loves Tamiyo, and she's worked with the Gatewatch Super Team

Theyre so rare its not guaranteed youll pull one from a whole booster box of 288 cards

That said, it is probably narrow enough that its power level wont become a problem and the fact that it needs other cards to make it truly broken should make it just a solid EDH card rather than a real issue