Soul Reap doesn’t check whether you’ve cast another black spell until Soul Reap resolves. If you cast Soul Reap, then cast a black instant in response, the creature’s controller will lose the life when Soul Reap resolves.
2008-08-01
wotc
Although Soul Reap says it looks for “another black spell,” there’s no requirement that Soul Reap actually be cast (or be black) for this part of its ability to work. For example, if a spell such as Commandeer causes you to gain control of Soul Reap, it’ll still check whether you cast a black spell this turn, even though you didn’t cast Soul Reap itself.
2008-08-01
wotc
A hybrid creature that’s green and another color is *not* a nongreen creature. Since it’s green, it can’t be nongreen!
Format Legality
Standard
Not Legal
Future
Not Legal
Historic
Not Legal
Timeless
Not Legal
Gladiator
Not Legal
Pioneer
Not Legal
Modern
Legal
Legacy
Legal
Pauper
Legal
Vintage
Legal
Penny
Not Legal
Commander
Legal
Oathbreaker
Legal
Standardbrawl
Not Legal
Brawl
Not Legal
Alchemy
Not Legal
Paupercommander
Legal
Duel
Legal
Oldschool
Not Legal
Premodern
Not Legal
Predh
Legal
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