Ayle, Avenger of Birds

+2: The next time a bird you control dies, target opponent loses 3 life and you gain 3 life (This ability stacks).
-2: Create 3 1/1 white and black bird creature tokens with flying.
-10: You get an emplem with:"Birds you control have infect and hexproof." Create 3 1/1 black and white bird creature tokens with flying.