Torrent of Souls
Sorcery
Return up to one target creature card from your graveyard to the battlefield if 
was spent to cast this spell. Creatures target player controls get +2/+0 and gain haste until end of turn if 
was spent to cast this spell. (Do both if was spent.)
Illustrated by
Modern Masters 2017#213UncommonEnglishLegality
Rulings
Jun 8, 2016
This spell cares about what mana was spent to pay its total cost, not just what mana was spent to pay the hybrid mana symbol in its cost.
Jun 8, 2016
This spell checks on resolution to see if any mana of the appropriate colors were spent to pay its cost. It doesn’t matter how much mana of that color was spent; the effect isn’t multiplied.
Jun 8, 2016
If this spell is copied, the copy will not have had any colors of mana paid for it, no matter what colors were spent on the original spell.