IGN: @litrydow

My favorite low mana card is Creeping Ooze. It's as low mana as it gets, costing only 1, with the fantastic effect of slowing down the whole enemy team. It's a bit like playing with Pyre, but with only 1 mana cost and freeing your summoner slot for something else.

Of course it has the disadvantage of being killed off easily, but that might be a good thing sometimes. Maybe if you put it in your last position and the enemy has the sneak ability, the Ooze will have sacrificed itself to save your second-to-last card that is doing actual damage.