Keep Safe can target a spell that has multiple targets, as long as at least one of those targets is a permanent you control.
2020-04-17
wotc
If the permanent you control targeted by the target spell leaves the battlefield, that spell is no longer a legal target for Keep Safe. On the other hand, if that target permanent becomes an illegal target for the target spell but remains on the battlefield under your control, the target spell is still a legal target for Keep Safe.
2020-04-17
wotc
A spell that can’t be countered is a legal target for Keep Safe. That spell won’t be countered when Keep Safe resolves, but you’ll still draw a card.
Format Legality
Standard
Not Legal
Future
Not Legal
Historic
Legal
Timeless
Legal
Gladiator
Legal
Pioneer
Legal
Modern
Legal
Legacy
Legal
Pauper
Legal
Vintage
Legal
Penny
Legal
Commander
Legal
Oathbreaker
Legal
Standardbrawl
Not Legal
Brawl
Legal
Alchemy
Not Legal
Paupercommander
Legal
Duel
Legal
Oldschool
Not Legal
Premodern
Not Legal
Predh
Not Legal
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