Confidence:StrongSolidPlausibleTentativeSpeculative

• Goblin Sharpshooter

  2R

  Creature — GoblinR

  Lethal pinger: one card gives the other deathtouch, and the other is a pinger that untaps whenever a creature dies — so every ping kills a creature and readies it to ping again. It clears your opponents' creatures one by one, then stops when there is nothing left to kill (once, if the deathtouch only lasts the turn).
• Reanimate

  B

  SorceryB

  Reanimate puts Baleful Eidolon onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Helping Hand

  W

  SorceryW

  Helping Hand puts Baleful Eidolon onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Unearth

  B

  SorceryB

  Unearth puts Baleful Eidolon onto the battlefield from a graveyard without casting it, so its mana cost is never paid.
• Grave Researcher // Reanimate

  2BB

  Creature — Troll Warlock // SorceryB

  Grave Researcher puts Baleful Eidolon onto the battlefield from a graveyard without casting it, so its mana cost is never paid.