Wirewood Channeler does not have summoning sickness.
({1} magic symbol) available.
Steps
Activate Mirror Entity by paying ({1} magic symbol) , giving creatures you control all creature types and base power and toughness 1/1 until end of turn.
Activate Wirewood Channeler by tapping it, adding at least ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) .
Activate Wirewood Symbiote by returning it from the battlefield to your hand, untapping Wirewood Channeler.
Cast Wirewood Symbiote by paying ({G} magic symbol) .
Repeat.
Notes
Once you have infinite mana, you may activate Mirror Entity to make your creatures infinitely large until end of turn.
Results
Infinite LTB.
Infinite ETB.
Infinite storm count.
Infinite colored mana.
Infinitely large creatures you control until end of turn.