Exile the top three cards of your library. You may cast a red spell and play a Mountain card exiled this way until the end of your next turn.

Whenever you cast an instant or sorcery spell with mana value 4 or greater, look at the top two cards of your library. Put one of them into your hand and the other into your graveyard.

Ward {1}
Whenever one or more counters are put on Enlightened Naturalist, draw a card for each kind of counter put on it on it that it didn't have already.

When Envoy of the Unknown enters, you may have each player draw a card.

Flying, first strike, vigilance

Aura spells you cast cost {1} less to cast.
When Ephara's Oracle enters, look at the top five cards of your library. You may reveal an enchantment card from among them and put it on the top of your library. Put the rest on the bottom of your library in a random order.

Target creature you control gets +1/+2 until end of turn. It fights target creature you don't control.

You may reveal a legendary card you own from outside the game and put it into your hand. Exile Epic Encounter.

Exile target nonland permanent if its mana value is less than or equal to your devotion to white.

As an additional cost to cast this spell, sacrifice a nonland permanent.
Search your library for a card with mana value equal to 1 plus the sacrificed permanent's mana value that shares a card type with the sacrificed permanent, put that card onto the battlefield, then shuffle.

Counter target creature spell.

{T}, Pay 1 life, Sacrifice an artifact or creature: Make a pledge.

The first spell you cast each turn costs {1} less to cast.

This spell costs {3} less to cast if you control three or more tokens.
Create X 1/1 green Elf creature tokens.

Flash
If a permanent would be put into your hand from the battlefield, you may put that card on the bottom of your library instead. If you do, you draw two cards.

Endgame
{T}: Add {B} or {G}.
{T}, Sacrifice Evelyn Snakewood: Return target creature card from your graveyard to the battlefield tapped. Activate only if you're in your endgame.

Exile target nonland permanent if its mana value is less than or equal to the greatest number of nonland permanents controlled by a single player.

Enchant creature with another Aura attached to it
Enchanted creature gets +3/+3 and has trample, vigilance, and reach.

When Everpresent Rot enters, create a 1/1 green Saproling creature token, surveil 1, then you gain 1 life.
When one or more permanent cards leave your graveyard, return Everpresent Rot to its owner's hand.

Deathtouch
Other Gorgons, Snakes, and Basilisks you control get +1/+1.
Whenever a creature with deathtouch you control deals combat damage to a player or planeswalker, create a Treasure token.

Endgame
{3}, Sacrifice Execution Table: It deals 3 damage to target creature. If you're in your endgame, it deals 5 damage instead.

{T}, Waste a nonwastes land you control: Add one mana of any color.

Trample, haste
Decayed

Vanguard — Whenever a creature you control attacks alone, you may put a charge counter on Expert Belt and attach it to that creature.
Equipped creature has hexproof.
Equipped creature gets +1/+0 for each charge counter on Expert Belt.
Equip {2}

You may play an additional land this turn.
Draw a card.