Frodo, Sauron's Bane (Showcase) Buylist you lose 1 life for

you lose 1 life for each burden counter on The One Ring

A deck can have any number of cards named Rat Colony

untap Slicer

return up to one target creature you control with lesser mana value to its owner's hand

Activate only as a sorcery

Frodo, Sauron's Bane (Showcase) Buylist you lose 1 life for{W B}{W B}: If Frodo is a Citizen, it becomes a Halfling Scout with base power and toughness 2 3 and lifelink. {B}{B}{B}: If Frodo is a Scout, it becomes a Halfling Rogue with "Whenever this creature deals combat damage to a player, that player loses the game if the Ring has tempted you four or more times this game. Otherwise, the Ring tempts you."