mtg modern card pool Knowledge [111] [Mirrodin Besieged] [Foil] – Face to Face Games Island Swamp Cavern of Souls #232 Holo

Product Details (As this Saga enters and after your draw step, add a lore counter.) I Create a 2/2 red Goblin Shaman token with Whenever this creature attacks, create a Treasure token. II You may discard up to two cards

Admittedly, there's some anti-synergy here with the multiple Dredge cards in this deck

In September 2020, a Mox Sapphire Beta Edition went for $12,100

Note that this is damage, not just combat damage if you can string some rituals and buffs together with cards like Storm-Kiln Artist, Birgi, and Haze of Rage, you can convert that into a Chandras Ignition with little effort

A good example of a land combo is the classic Dark Depths + Thespian's Stage, though Commander players might be more familiar with Cabal Coffers + Urborg, Tomb of Yawgmoth