Kiki-Jiki, Mirror Breaker | Blazing Firesinger // Seething Song

Cards

({4} magic symbol) ({R} magic symbol) plus an amount of mana available equal to ({3} magic symbol) minus the number of +1/+1 counters on
Runaway Steam-Kin available.

If
Runaway Steam-Kin has three or more +1/+1 counters on it, activate it by removing three +1/+1 counters from it, adding ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Activate
Kiki-Jiki by tapping it, copying
Blazing Firesinger. It'll enter prepared due to its effect.
Cast a copy of
Seething Song by paying ({2} magic symbol) ({R} magic symbol) .
Runaway Steam-Kin and
Hematite Talisman trigger.
Resolve the
Runaway Steam-Kin trigger, putting a +1/+1 counter on it.
Holding priority, if
Runaway Steam-Kin has three or more +1/+1 counters on it, activate it by removing three +1/+1 counters from it, adding ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Resolve the
Hematite Talisman trigger, causing you to pay ({3} magic symbol) to untap
Kiki-Jiki.
Resolve
Seething Song, adding ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Repeat from step 2.