Drafna, Founder of Lat-Nam | Intruder Alarm | Su-Chi

(and one other card)

Cast
Su-Chi by paying ({4} magic symbol) .
Holding priority, activate
Drafna's second ability by paying ({3} magic symbol) and tapping it, copying the
Su-Chi spell.
Resolve the copy of the
Su-Chi spell, creating a token copy of
Su-Chi.
The token
Su-Chi enters the battlefield, triggering
Intruder Alarm, untapping all creatures.
Activate
Krark-Clan Ironworks by sacrificing the
Su-Chi token, adding ({C} magic symbol) ({C} magic symbol) .
The token
Su-Chi dies, adding ({C} magic symbol) ({C} magic symbol) ({C} magic symbol) ({C} magic symbol) .
Repeat from step 2.
Once you have infinite mana, you may forego sacrificing the
Su-Chi tokens.