: This creature gets +1/+0 until end of turn.

Conjure Elemental — : Untap target land you control. It becomes an 8/8 Elemental creature with trample and haste until end of turn. It's still a land.

When this creature enters, put a +1/+1 counter on target creature you control.
Whenever this creature attacks, put a +1/+1 counter on each attacking creature with a +1/+1 counter on it.

Domain — Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. Exploding Borders deals X damage to target player or planeswalker, where X is the number of basic land types among lands you control.

Target creature gains deathtouch until end of turn.
Draw a card.

Other artifact creatures you control get +1/+1.

When this land enters, if you control two or more Gates, you gain 3 life.
: Add .
: Add one mana of any type that a Gate you control could produce.

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. Create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — This Saga deals 2 damage to each opponent and you gain 2 life.
III — Create an X/X black Nightmare Horror creature token, where X is half your life total, rounded up. It deals X damage to you.

Vigilance
As long as you control six or more lands, this creature and land creatures you control get +2/+2.

This spell can't be countered.
Target opponent reveals their hand. Exile all noncreature, nonland cards from that player's hand and graveyard.

Target creature gets -3/-0 until end of turn. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Offspring (You may pay an additional as you cast this spell. If you do, when this creature enters, create a 1/1 token copy of it.)
Trample
Whenever a creature you control becomes the target of a spell or ability an opponent controls, put a +1/+1 counter on target creature you control other than that creature.

When this creature enters, target player shuffles any number of target cards from their graveyard into their library.

Changeling (This card is every creature type.)
: This creature gets +1/+0 until end of turn. Activate no more than twice each turn.

Target creature you control gets +1/+2 until end of turn. It fights target creature you don't control. (Each deals damage equal to its power to the other.)

When this creature enters, create a Food token. (It's an artifact with ", , Sacrifice this token: You gain 3 life.")
Whenever you sacrifice a Food, you may search your library for a basic land card and put it onto the battlefield tapped. If you search your library this way, put this creature on the bottom of its owner's library, then shuffle.

(: Add .)

Target player reveals their hand. You choose a nonland card from it. That player discards that card.

Enchant creature
Enchanted creature gets +1/+1 for each Plains you control and has flying.