Well then:
I form a single, giant, six-armed Noodle Behemoth around myself, using the Noodle Golems and the last of my Lava Noodles as a heart/sanctum. It's a suit of armor, almost. It is equipped with multiple Noodle Weapons, and enormous wings grow out of the back.
Using the Stone Noodle shards as interference, I attack the very icy core of the rune eel.
1: Form Noodle Behemoth out of Noodle Golems, with firey core for protection against ice.
2: Run interference with stone noodle shard rain, clearing a path.
3: Attack the very core of the rune-eel, scattering Ice Golems in my wake as an elephant would ants.
4: Extend (very) temporary alliance to anyone wishing to run down the alley that was created and help me dismantle this thing.
5: Blow it the hell up.
If this won't kill the event, nothing will. It took all my energy and spare noodles to make, so it better work!