Clement, the Worrywort
Legendary Creature — Frog Druid
Oracle Text
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."
Rules for this card
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A keyword ability that lets a creature attack without tapping. See rule 702.20, “Vigilance.”