Stribog, God of Winds

Flying, Idestuctible.
{1}{u}: Create a 1/1 blue creature Bird token with flying. Use this ability only once each turn.
Stribog, God of Winds can't attack unless no oblation this turn.
Oblation 1 (At the begining of your upkeep sacrifice artifact or Non-Human creature with converted mana cost 1 ore more)