Obviously most of the cards you might want to upgrade the deck with will come from the upcoming Marvel set, and since this is a new creature type, there's a limited selection available

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That is exactly the sort of thing this game needs to make people like me feel
is a key option
Back Galian Beast Trample, lfelink When Galian Beast dies, return it to the battlefield tapped (front face up)
The key part about Celestine is that this ability doesnt cost you any mana to use unlike its life loss counterpart a few ranks back, leaving you free to spend all your mana on other things during your turn