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The Perilous Myr + Heartless Summoning combo. The deck has some other small combos or things that work well with Heartless Summoning. Demonic Taskmaster = 3/2 Flying for 1 mana Cathodion + H.S. + Dead Weight = 2 mana Havengul Lich + H.S. + Perilous Myr + Disciple of the Vault + Defensive Stance = 3 damage for each myr that dies. Havengul Lich can continue to recast the myr. Perilous Myr + 1 Defensive Stance + H.S. + Infinite Reflection + a lot of creatures = 2 damage for each creature you control (they die) except for the one with the defensive stance and the Infinite Reflection on it.
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