Once the initiative is in the game, just like Monarch, it remains in the game until the game ends, and only one player at a time can have the initiative
Permanents phasing out trigger leaves-play abilities as usual
For a deceptively low mana cost, it forces an opponent to discard their entire handan effect so oppressive that Mind Twist has long been restricted or outright banned in various formats
Because they occur after the creatures have combined into one, the triggers which count the number of times this creature has mutated will count all previous mutations of that mutator, even if the trigger came from the one you just added
The perk for this overcosting is split second which sounds exciting and nice but in reality has very few actual applications in the cube
Its staggering value comes from the "perfect storm" of a flawless PSA 10 Gem Mint grade on a card from the exceedingly rare Alpha set