Living Storm

Every turn count all the red and blue devotion
of your cards on the battlefield
(coloured mana you see in the cards'cost),
pair them up (one red for every blue) and
ad one +1/+1 for every pair of mana,
to Living Storm
(left over mana not in a pair doesn't count).
"Yes!(zzt)It has(zzt)arrived!(zzt)"-Felix to Thor