At the beginning of each end step, create X 1/1 black Rat creature tokens with "This creature gets +1/+1 for each other Rat you control," where X is the number of creatures your opponents controlled that were exiled this turn
This deck wants to Quest for a lot of Lore with its low-cost Characters and close out games as fast as possible
"Flashforward [cost]" means "You may cast this card from exile by paying [cost] rather than paying its mana cost" and "If the flashforward cost was paid, put this card on the bottom of its owner's library instead of putting it anywhere else any time it would leave the stack." You must still follow any timing restrictions and permissions, including those based on the card's type
You get three brand new cards, potentially all in your hand and all able to be used right away
Some of your creature contain +1/+1 triggers to make your creatures bigger, but of course you want to keep Frodo's power low so he can't be blocked easily
The low MV and flashback cost of this card give it a ton of power if you have a good board presence