Harmonize

This card can only be played if you control cards
named Rot and Rejuvenate.
Choose three:
Deathtouch, Double Strike, First Strike, Flying,
Haste, Hexproof, Indestructible,
Lifelink, Menace, Reach, Reach, Trample, Shulk, Vigilance
Creatures you control have the three chosen attributes.