For every creature you gain, each creature gets a +1/+1 counter, thus offering an ever-increasing number of +1/+1 counters the more critters you cast
Maybe a different configuration ends up making more out of them, but for now I would sideline them
This means that if a copy of the card is forced upon an opponent with a significant amount of card draw in their deck, it can do wonders for a white deck
Demonic Tutor and Natural Order provide the singleton format with a touch too much consistency
If that brain cant figure out the secret of the serum, then add more brains. Rhmir, Hand of the Augur Illustrated by Stephan Martiniere Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
This relatively cheap enchantment lets players draw an extra card at the start of their turn while also letting everyone play an extra land during their turn, all for just three mana