Avaria's Grace

When Avaria's Grace enters the battlefield, you
gain 1 life.
Whenever you gain 5 or more life, create a 4/4
white angel creature token with flying.
If Avaria's Grace would be destroyed, you may
pay {3}{w}{w}{w}. If you do, return it to your hand.
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"Call for sanctuary, and that may answer." -Avaria