nihilego pokemon card GX - 49/111 [Psychic]×2 Pokemon Sun & Moon Crimson

If you were to have a land type count as that color instead, you would allow Mtenda Lions and such, but disallow many more things

$1.29 All That Glitters (Borderless) Commander Masters Variants $0.35 Killian, Ink Duelist Strixhaven: School of Mages $0.35 Parasitic Impetus Commander 2020 $0.59 Incriminating Impetus Ravnica: Clue Edition $0.79 Minion's Return Theros Beyond Death $1.29 Bloodthirsty Blade Murders at Karlov Manor Commander Decks $5.99 Sphere of Safety Return to Ravnica $3.49 Kaya's Ghostform War of the Spark $3.49 Vampiric Link Planar Chaos $6.99 Timely Ward Duskmourn: House of Horror Commander Decks $2.29 Mesa Enchantress Duskmourn: House of Horror Commander Decks $0.59 Redemption Arc Murders at Karlov Manor Commander Decks 0 results found

That includes a few of the Arcbound creatures, to include Arcbound Ravager

To trigger the Meld mechanic, a player must own and control both cards on the battlefield, and then pay seven mana of any color

Erode is another one mana white removal spell that provides a hard answer to a creature