Send to Sleep is a common Instant card from Magic: The Gathering (The List, PLST). Current market price: $0.10.
Common
The List (PLST)
{1}{U}
Mana Value
2
Colors
U
Card Text
Tap up to two target creatures.
Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, those creatures don't untap during their controllers' next untap steps.
