Zyrotath, bringer of storms

At the beginning of your turn, If you created a
charge counter last turn, add a charge counter to Zyrotath, bringer of storms.

{u}{u} energy syphon — add a charge counter to Zyrotath, bringer of storms.

{2}{r}{r}{r}{r}{t} unleash — Remove all charge
counters from Zyrotath, bringer of storms. Deal 3
damage to any target for each charge counter
removed in this way.