Whenever Undercover Crocodelf deals combat damage to a player, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Disguise (You may cast this card face down for as a 2/2 creature with ward . Turn it face up any time for its disguise cost.)

Uurg, Spawn of Turg's power is equal to the number of land cards in your graveyard.

At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

, Sacrifice a land: You gain 2 life.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Gain control of target non-Mutant creature for as long as you control Vault 87.

II — Put a +1/+1 counter on target creature you control. It becomes a Mutant in addition to its other types.

III — Draw cards equal to the greatest power among Mutants you control.

Changeling (This card is every creature type.)

Reach

When Webweaver Changeling enters, if there are three or more creature cards in your graveyard, you gain 5 life.

Cleave (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.)

Draw a card for each creature you control with flying.