Barkform Harvester

The colorless activated recycler is a quiet oddity: most effects that move a card from the graveyard back into play or hand are gated behind a color's identity, but this one asks only for generic mana, so any deck can run it. What it actually does, though, is not recursion to the hand at all. The card goes to the bottom of the library, which means the ability is a restocking tool rather than a tutor: it saves a key piece from graveyard exile or a mill clock, tucks it back into the deck to be drawn eventually, and gives you nothing this turn beyond the reshelving. That softness is the price of the color-free access. Repeatable, hand-generating recursion in colorless would warp constructed play; a delayed, put-it-on-the-bottom clause priced at a modest activation cost keeps the effect useful without being oppressive. The changeling line carries the other half of the design. As an artifact that reads as every creature type at once, it slots into any tribal shell as a fill-in body, so a deck built around a specific type gets a bottom-of-library toolbox that also counts as one of the tribe. Reach and a 2/3 frame give it a real blocking job while the ability grinds out its patient work over a long game. This is a utility creature for the deck that wants graveyard insurance but cannot spare a color slot to buy it.