mtg.wtf

Trample, myriad
As long as Elturel Survivors is attacking, it gets +X/+0, where X is the number of lands defending player controls.

Flying, vigilance, lifelink, haste
At the beginning of your second main phase, the player to your left gains control of Elusen, the Giving.
Whenever a player donates a permanent to another player, the donating player draws a card, gains 1 life, and creates three Treasure tokens.

When Elven Bow enters, you may pay {1}. If you do, create a 1/1 green Elf Warrior creature token, then attach Elven Bow to it.
Equipped creature gets +1/+2 and has reach.
Equip {3}

{1}{G}: Target blocking creature gets +0/+1 until end of turn.

{T}: Prevent the next 1 damage that would be dealt to any target this turn. If it's a green creature, prevent the next 2 damage instead.

Elvish House Party's power and toughness are each equal to the current hour, using the twelve-hour system.

As Elvish Impersonators enters, roll a six-sided die twice. Its base power becomes the first result and its base toughness becomes the second result.

{G}, {T}: Untap target attacking creature you control. Prevent all combat damage that would be dealt to and dealt by it this turn.

When you set this scheme in motion, each player shuffles their hand and graveyard into their library. You draw seven cards, then each other player draws four cards.

Whenever another creature enters, you may stand up and say in a deep, booming voice, "Presenting . . . " and that creature's name. If you do, put a +1/+1 counter on that creature.

Whenever Emerald Collector deals combat damage to a player, draw a card.
When you draw your third card in a turn, conjure a card named Mox Emerald into your hand. This ability triggers only once.
{2}{G}: Emerald Collector has base power and toughness 4/4 until end of turn.

Flying, trample

Flying, ward {2}

Flying
{G}{G}: Emerald Dragonfly gains first strike until end of turn.

Before drawing your opening hand, choose 1, 2, or 3.
You may spend mana as though it were mana of any color to cast creature spells with mana value equal to the chosen number.

Convoke
When Emmara, Voice of the Conclave enters, draft a card from Emmara, Voice of the Conclave's spellbook.

Whenever another creature enters under your control, that creature perpetually gains haste if its power is 4 or greater. If its toughness is 4 or greater, you gain 4 life. If its mana value is 4 or greater, seek a creature card.

Thopters you control get +2/+0.
At the beginning of your upkeep, conjure a card named Ornithopter into your hand.

Target opponent skips all combat phases of their next turn.

Devoid (This card has no color.)
Flying, Trample, Forestwalk, protection from non-Squirrels
When you cast Emrakul and Chatterfang, create 15 1/1 green Eldrazi Squirrel Scion creature tokens with "Sacrifice this creature: Add {G} or {B}".

Prevent all combat damage that would be dealt to Enchanted Being by enchanted creatures.

Enchanted Prairie enters tapped.
{T}: Add {W} or {U}.

Enchant creature or enchantment
Enchanted permanent is an enchantment and loses all other card types. (It still has its abilities, but it's no longer a creature.)

When you unlock this door, conjure a duplicate of this card into your hand. When you do, target creature you control gains first strike until end of turn.

Double team
Whenever you cast an instant or sorcery spell, creatures you control that are Otters and/or enchantments get +1/+1 until end of turn.
When Enduring Friendship dies, if it was a creature, return it to the battlefield under its owner's control. It's an enchantment.