Necrobinder relics

At the start of each combat, add 2 random Ethereal cards into your Hand.

Whenever Osty attacks, gain 2 Block.

Whenever a non-Minion enemy dies to Doom, heal 3 HP.

At the end of each turn, lower the cost of a random Retained card by 1 until played.

At the start of your turn, Summon 1.

At the start of each combat, add 3 Souls into your Draw Pile.

Whenever you play a card that costs or more, gain.

Enemies with at least as much Doom as HP deal 50% less damage.