Each activation deals damage equal to Ojer Axonil's power to each opponent and 1 to you, so you need more life than activations: with exactly that much the game is a draw. It deals 1 to Ojer Axonil too, which has to be there for the last one.
Activations10
You lose
10 life
with exactly that much life the game is a draw
Mana
× 10
Ojer Axonil takes
10 damage
it would die on activation 4: give it indestructible or protection