At the beginning of your upkeep, sacrifice Molten-Tail Masticore unless you discard a card.
, Exile a creature card from your graveyard: Molten-Tail Masticore deals 4 damage to any target.
: Regenerate Molten-Tail Masticore (The next time this permanent would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.).
Vintage
Pioneer
, Exile a creature card from your graveyard: Molten-Tail Masticore deals 4 damage to any target.
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