This is a waste of Energy given that Weezing only needs one Energy to attack
And signatures, in my opinion, are the best way to accomplish that.
Meet the conditions, and you can meld the two cards, turning them over to make Ragnarok, Divine Deliverance
Looking at my cube, there is critical mass for: Goblins (R) Humans (all) Warriors (WBR) And, with some effort, other tribes could get critical mass running only cards that are cubeable by themselves, keeping the Poison effect to a minimum: Soldiers (W) Wizards (U) Shamans (RG) Vampires (B) I'm fine with dedicating 2-3 slots per color so each of these tribes have a Lord or some other linear effect as a nod to play them (Goblin Chieftain, Champion of the Parish, Chief of the Edge) but I don't want this cube to be mainly tribal, just have an extra layer of synergy that cares about the creature type line at a low opportunity cost
This lets a creature count as all creature types, which means you can make a sliverless sliver deck and Im here for that