If one of the target creatures becomes an illegal target while Soulmates is on the stack, Soulmates resolves but doesn’t enter the battlefield because its enchant ability won’t be satisfied. If both targets are illegal, it doesn’t resolve at all. In both of these cases, it’s put directly into its owner’s graveyard from the stack.
2019-11-12
wotc
If one of the enchanted creatures leaves the battlefield without dying, Soulmates is put into its owner’s graveyard, but the other creature won’t be destroyed. The same is true if one of the enchanted creatures can’t legally be enchanted by Soulmates (perhaps because it gained protection from enchantments or it’s no longer a creature).
Format Legality
Standard
Not Legal
Future
Not Legal
Historic
Not Legal
Timeless
Not Legal
Gladiator
Not Legal
Pioneer
Not Legal
Modern
Not Legal
Legacy
Not Legal
Pauper
Not Legal
Vintage
Not Legal
Penny
Not Legal
Commander
Not Legal
Oathbreaker
Not Legal
Standardbrawl
Not Legal
Brawl
Not Legal
Alchemy
Not Legal
Paupercommander
Not Legal
Duel
Not Legal
Oldschool
Not Legal
Premodern
Not Legal
Predh
Not Legal
Who's Online
Live site activity across collectors, guests, and crawlers.