Hostility | Reiterate | Thud

(and one other card)

({4} magic symbol) ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) available.

Cast
Thud by paying ({R} magic symbol) and sacrificing a creature you control with power seven or greater.
Holding priority, cast
Reiterate with buyback by paying ({4} magic symbol) ({R} magic symbol) ({R} magic symbol) , creating a copy of
Thud and returning
Reiterate to your hand.
Resolve the
Thud copy, causing you to create at least seven 3/1 Elemental Shaman creature tokens with haste due to
Hostility.
Activate
Thermopod seven times by sacrificing seven Elemental Shamans, adding seven ({R} magic symbol) .
Repeat from step 2 an arbitrarily large number of times.
Activate
Thermopod's second ability by sacrificing
Hostility, adding ({R} magic symbol) .
Hostility dies, shuffling itself into your library from your graveyard.
Cast
Reiterate with buyback by paying ({4} magic symbol) ({R} magic symbol) ({R} magic symbol) , creating a copy of
Thud and returning
Reiterate to your hand.
Resolve the
Thud copy, dealing at least seven damage to any target.
Repeat from step 8.