Reiterate | Seething Song | Runaway Steam-Kin

(and one other card)

Reiterate and
Seething Song in hand.
Runaway Steam-Kin and
Ruby Medallion on the battlefield.
({4} magic symbol) ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) availabe.

Cast
Seething Song.
In response, cast
Reiterate, targeting
Seething Song and paying the buyback cost.
After
Reiterate and the copy of
Seething Song resolve, cast
Reiterate targeting
Seething Song and paying the buyback cost.
Remove three +1+1 counters from
Runaway Steam-Kin to produce ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Repeat the loop from step 3, removing counters from
Runaway Steam-Kin for mana every three iterations.