You can cast spells only during your turn and you can cast no more than two spells each turn.
You may cast spells with mana value less than or equal to the number of lands you control without paying their mana costs.

This enchantment enters with three +1/+1 counters on it.
At the beginning of your upkeep, move a +1/+1 counter from this enchantment onto target creature.
When this enchantment has no +1/+1 counters on it, sacrifice it.

Whenever you sacrifice one or more other creatures, Forge Boss deals 2 damage to each opponent. This ability triggers only once each turn.

Exhaust — : Put two +1/+1 counters on this creature. (Activate each exhaust ability only once.)
Whenever you activate an exhaust ability, return this card from your graveyard to the battlefield.

Destroy target creature. It can't be regenerated. Its controller creates a 1/1 white Spirit creature token with flying.

Delve
For each player, choose up to one target creature card in that player's graveyard. Put those cards onto the battlefield under your control. They're Zombies in addition to their other types.

Creatures you control gain afterlife 1 until end of turn. Draw a card.

When this creature enters, mill three cards.
, Sacrifice this creature: Return all land cards from your graveyard to the battlefield tapped.

Destroy target artifact, creature, or land. Aftershock deals 3 damage to you.

: This creature gains flying until end of turn.
Whenever this creature attacks, exile up to one target card from a graveyard.

As long as Futurist Operative is tapped, it's a Human Citizen with base power and toughness 1/1 and can't be blocked.
: Untap Futurist Operative.

: Put target creature card from an opponent's graveyard onto the battlefield under your control if its mana value is less than or equal to the number of Allies you control.

As this land enters, you may pay 3 life. If you don't, it enters tapped.
: Add .

Choose one or both —
• Exile target artifact or creature you control, then return it to the battlefield under its owner's control.
• Return target artifact or creature card with mana value 3 or less from your graveyard to the battlefield.

Choose target creature or planeswalker. You get (two energy counters), then you may pay any amount of . Galvanic Discharge deals that much damage to that permanent.

Choose one —
• Agate Assault deals 4 damage to target creature. If that creature would die this turn, exile it instead.
• Exile target artifact.

Offspring
Whenever another creature you control enters, this creature deals 1 damage to each opponent.

Whenever another creature you control enters, this creature deals 1 damage to each opponent.
(This token's mana cost is .)

Whenever this creature attacks, defending player loses 1 life and you gain 1 life.

Activated abilities of creatures you control cost less to activate, where X is Agatha's power. This effect can't reduce the mana in that cost to less than one mana.
: Other creatures you control get +1/+1 and gain trample and haste until end of turn.

Bargain
Trample
When this creature enters, if it was bargained, it fights up to one target creature you don't control.

You may spend mana as though it were mana of any color to activate abilities of creatures you control.
Creatures you control with +1/+1 counters on them have all activated abilities of all creature cards exiled with Agatha's Soul Cauldron.
: Exile target card from a graveyard. When a creature card is exiled this way, put a +1/+1 counter on target creature you control.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
For each opponent, destroy up to one target nonartifact creature that player controls.
For each opponent, you create a 2/2 colorless Robot Villain artifact creature token.
Artifact creatures you control gain deathtouch until end of turn. Put a +1/+1 counter on each of them.

This land enters tapped.
: Add or .

Whenever you gain life, put that many +1/+1 counters on this creature.