The Clarion Call ability lets you return a Seven Dwarf character to your hand to draw an additional card, while Never Forgotten means this card is never banished, but instead returned to your hand
These decks usually bump up to 26-28 lands and back their mana base up with cantrips and card draw to ensure they always hit land drops
If that isnt enough, it can cast spells for free from anyone's graveyard if conditions are met
Shes hasty, she can buff the team, and her Battalion trigger deals burn to face based on the number of artifacts you control
Hivestone actually wants to sneak the sliver ideals into another go-wide EDH deck, tokens, and Rukarumel, Biologist is like it, branching out slivers to interact with other creature types
I would say roughly 75% of decks are mono or dual colour and three colour cards cannot be played in these decks