
RegenerateRegenerateThe next time the creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it. target creature. Draw a card. (The next time the creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)
Spell masterySpell masteryAbility word: is better if two or more instant and/or sorcery cards are in your graveyard. — If there are two or more instant and/or sorcery cards in your graveyard, also regenerateregenerateTap it, remove it from combat, and heal all damage on it. each other creature you control.
Hover an underlined rule to see what it means.
Read from the rules text. A card that enables a keyword makes or is the thing; a card that rewards it gets better when you have it. Two cards interact when one enables what the other rewards.