Zirda the Dawnwaker

“Companion — Each permanent card in your starting deck has an activated ability. <em>(If this card is your chosen companion, you may cast it once from outside the game.)</em> <br> Abilities you activate that aren't mana abilities cost 2 less to activate. This effect can't reduce the mana in that cost to less than one mana. <br> 1, T: Target creature can't block this turn.”