Collector's Vault + Clock of Omens + Krark-Clan Ironworks + Doubling Season

Collector's Vault

Clock of Omens

Krark-Clan Ironworks

Doubling Season

How it works

1. Activate Collector's Vault by paying 2 and tapping it, causing you to loot and create two Treasure artifact tokens.
2. Activate Clock of Omens by tapping the Treasures, untapping Collector's Vault.
3. Activate Krark-Clan Ironworks by sacrificing a Treasure, adding CC.
4. Repeat.

This clever loop turns Collector's Vault into a self-sustaining engine by using Doubling Season to double every Treasure token it produces into a pair of shiny new artifacts. With those extra tokens at your disposal, Clock of Omens can effortlessly tap them to untap Collector's Vault while leaving you spare material to feed directly into Krark-Clan Ironworks for a steady stream of colorless mana. As you cycle through the loop, you get to dig endlessly through your library with infinite looting while stockpiling a massive horde of treasure and mana to fuel whatever devastating payoff you draw into.