Coming in at four mana with flash, this siege gives a target creature an opponent controls a massive -13/-13 debuff and can transform after its five defense counters have been depleted
This is undoubtedly a powerful card with a ton of value, even when it's defeated, so expect to see a lot of it in play from Emerald & Sapphire players
Could you pack this into some inefficient stax build that recalls the evil Turbo Stasis decks of yore
this is called summoning sickness
Single-target pump spells are rarely seen in Commander outside of Poison decks, because their effect - helping a single creature win a single combat - is so small compared to the infinite combos, massive token armies, and other nonsense that the format is known for
Witch-King, Sky-Scourge is an interesting, undying form of card advantage on his own, but the real highlight is a cascading, one-sided wrath in Call Forth the Tempest, a new storm card, and Fell Beast of Mordor serving as a finisher that you may be surprised by