Enchant creature

At the beginning of your upkeep, put a +1/+1 counter on enchanted creature.

Put target creature with flying on the bottom of its owner's library.

Put target creature on top of its owner's library.

Defender

: Prevent the next 1 damage that would be dealt to you this turn.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Gain control of target non-Mutant creature for as long as you control Vault 87.

II — Put a +1/+1 counter on target creature you control. It becomes a Mutant in addition to its other types.

III — Draw cards equal to the greatest power among Mutants you control.