Clement, the Worrywort
From Bloomburrow set
Clement, the Worrywort
Legendary Creature — Frog Druid
3/3
Vigilance
Whenever Clement or another creature you control enters, return up to one target creature you control with lesser mana value to its owner's hand.
Frogs you control have "
: Add
or
. Spend this mana only to cast a creature spell."