Hazduhr, the Abbot of Onella

Whenever another creature enters the battlefield,
you may gain 1 life.
{w}{t}: Prevent all damage a source of your choice
would deal this turn.
When Hazduhr, the Abbot of Onella dies, you
may search your library for a Cleric card, reveal
it, and put it into your hand. If you do, shuffle
your library.