Darigaaz's Attendant

The bargain reads oddly on paper: a colorless body that, once spent, hands you the exact black-red-green of Darigaaz, the Igniter, no sooner than the turn you need it. That oddity is the point. The multicolor era's central design problem was coaxing players into three- and four-color decks without their mana drowning them, and this Golem answers from the artifact slot: it asks nothing colored to deploy, so it can sit in any deck's colors, then transmutes itself into a Jund triad on demand. The pricing is unusual: you pay the bulk up front for a fair 3/3, and the fixing comes cheap on the back end, just a single generic mana plus the creature itself to release the Jund mana. So the body is the expensive part and the conversion is nearly free, which makes the sacrifice a decision about timing rather than resources. Each of the five dragon-aligned attendants does this same trick for one legendary dragon's color pairing or triple, seeded to push the block's enemy and allied gold themes. The toughness is the wrinkle that sets it apart from a plain mana rock: until you cash it in, it blocks, attacks, and trades like any midsize creature, so the sacrifice happens on your timeline rather than as a tax paid at cast. Patient, color-screw-proofing fixing wearing a creature's clothes.