All it takes is one player with a board wipe and a chip on their shoulder to ruin your strategy
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
its a Spell card that has a very effective ability, in that it destroys all of your opponents Spell and Trap cards currently on the field
Page 19 -IF YOUR ATTACK POWER IS EQUAL TO THE OPPONENTS ATTACK POWER If your attacking monsters attack power is the same as the attacked monsters attack power, both monsters are destroyed
What Is An MTG Alpha Black Lotus
Meanwhile, your life total climbs out of reach