Mount Doom

Destroy all creatures with power 3 or greater. Then create a Food token for each creature you control. (It's an artifact with "2, T, Sacrifice this token: You gain 3 life.")

Vigilance Whenever an opponent casts a spell, if no mana was spent to cast it, counter that spell. Sacrifice Boromir: Creatures you control gain indestructible until end of turn. The Ring tempts you.

This enchantment enters with a hope counter on it for each creature you control. At the beginning of your end step, remove a hope counter from this enchantment. If you do, draw a card. Then if this enchantment has no hope counters on it, sacrifice it and you gain 4 life.

Legendary creatures you control get +2/+1 and have ward 1. Nonlegendary creatures you control get +1/+1.

When this enchantment enters, return target Equipment card from your graveyard to the battlefield. During your turn, you may activate equip abilities any time you could cast an instant. You may pay 0 rather than pay the equip cost of the first equip ability you activate during each of your turns.

W/BW/B: If Frodo is a Citizen, it becomes a Halfling Scout with base power and toughness 2/3 and lifelink. BBB: 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."

Flash You may cast legendary spells and artifact spells as though they had flash. If a legendary permanent or an artifact entering or leaving the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I, II — Search your library for a legendary creature card, reveal it, put it into your hand, then shuffle. III — Creatures you control gain double strike until end of turn. The Ring tempts you.