Ruby cards focus primarily on banishing your opponents cards, but they come at a high Ink cost
Sunspine Lynx Sunspine Lynx is incredibly pushed
With Ultima in play, you can start dropping them early on, even without any additional ramp or mana rocks
Similar to Porcelain Legionnaire in white, these are two cards that benefit from access to black mana, but that Im willing to put in the colorless section in a Cube because they dont necessitate access to much or any black mana: Dismember was just a game-changing card in Magic, and while Im more likely to use it as an answer to high-toughness creatures in my red decks or meaningful interaction in my green decks, its still high on my list of cards that I like to include in Cubes
Racing six life gain a turn is unlikely, attacking productively through the Wurmcoil is near impossible without evasion
So, we need a hero who dares to explore unknown areas, at best supports legendary cards and offers us multiple mana colours