Many in the early community thought there could be space for a sixth, hidden rarity
Create twice X 1/1 black and green Pest creature tokens with "When this token dies, you gain 1 life." Sorcery Color tag templates(None) Ral's Reinforcements Create two 1/1 blue and red Elemental creature tokens
Hornet Nest You dont want to mess with the Hornet Nest, or else youll have to deal with a lot of deathtouch wasps
Vren, the Relentless Vren, the Relentless often takes the role of a typal/control commander that grinds your opponents out of resources while it floods the table with tokens that are basically copies of Relentless Rats (hence the epithet)
Even better, once Varchild leaves the battlefield you gain control of all remaining Survivor tokens on the battlefield giving you a quick army of creatures stolen from your opponents
Every colour has the capacity to deal with creatures all be it with varying effectiveness