Kisidri, Clan Shieldguard

Kisidri, Clan Shieldguard blocks each turn if able.
If a source would deal damage to another
permanent you control, prevent that damage.
If a source would deal damage to you, prevent
half that damage, rounded up.
{w}{g}{2}{t}: until end of turn, when another
creature is put into your graveyard from the battlefield this turn, you may pay 2 life and
return that creature to your hand.