It also triggers on your upkeep, so if you grab Sanctum of Calm Waters or Sanctum of Fruitful Harvest first then they immediately trigger at the start of your main phase
Mewtwo continues to creep back up toward the $160 range, but it will have to settle for a solid placement at $145, just a few dollars shy of the next card
That does not mean every overseas buyer can or should use an official checkout path for every purchase
This is easily one of the most powerful ninjas in Magic, though it's slipped over time
This is like having a Doubling Season or Parallel Lives right in the Command Zone, which is an intense amount of power at your fingertips right at the start of the game
Whichever you choose, you'll still be getting a 10 mana 7/7 (plus a number of +1/+1 counters equal to the highest mana value of cards in exile) with annihilator x equal to the number of counters and ward that exiles half of your opponent's library