Dragonlair Spider

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

T: Add one mana of any color in your commander's color identity.

Destroy all creatures. They can't be regenerated. Draw a card for each creature destroyed this way. Cycling 3BB (3BB, Discard this card: Draw a card.) When you cycle this card, all creatures get -2/-2 until end of turn.

Counter target spell. If an artifact or creature spell is countered this way, put that card onto the battlefield under your control instead of into its owner's graveyard.

T: Destroy target creature of your choice, then destroy target creature of an opponent's choice. Activate only during your turn, before attackers are declared.

Imprint — When this creature enters, you may exile target nontoken creature. As long as a card exiled with this creature is a creature card, this creature has the power, toughness, and creature types of the last creature card exiled with it. It's still a Shapeshifter.

Whenever a creature deals combat damage to one of your opponents, its controller may draw a card.

Flying Whenever Kaalia attacks an opponent, you may put an Angel, Demon, or Dragon creature card from your hand onto the battlefield tapped and attacking that opponent.