Flying, ward

: Exile another target creature or artifact you control. Return it to the battlefield under its owner's control at the beginning of the next end step.

Fathomless descent — When Chupacabra Echo enters, target creature an opponent controls gets -X/-X until end of turn, where X is the number of permanent cards in your graveyard.

Enchant player

Whenever enchanted player casts an instant or sorcery spell, each other player may copy that spell and may choose new targets for the copy they control.

When Didact Echo enters, draw a card.

Descend 4 — Didact Echo has flying as long as there are four or more permanent cards in your graveyard.

Equipped creature can block an additional creature each combat.

Equip

Level up (: Put a level counter on this. Level up only as a sorcery.)

LEVEL 2-3

2/4

, : Copy target instant or sorcery spell. You may choose new targets for the copy.

LEVEL 4+

2/5

, : Copy target instant or sorcery spell twice. You may choose new targets for the copies.

Descend 4 — As long as there are four or more permanent cards in your graveyard, Echo of Dusk gets +1/+1 and has lifelink.

When you cast this spell, copy it for each time you've cast your commander from the command zone this game. You may choose new targets for the copies.

Create a token that's a copy of target artifact.

If a triggered ability of a colorless spell you control or another colorless permanent you control triggers, that ability triggers an additional time.

Whenever you cast a colorless spell, copy it. You may choose new targets for the copy. (A copy of a permanent spell becomes a token.)

Creature tokens you control have menace.

Whenever you attack a player, choose target nontoken creature that's attacking that player. Create a token that's a copy of that creature, except it's 1/1. The token enters tapped and attacking that player. Sacrifice it at the beginning of the next end step.

Target creature and all other creatures with the same name as that creature get +2/+2 until end of turn.

You may have Echoing Deeps enter tapped as a copy of any land card in a graveyard, except it's a Cave in addition to its other types.

: Add .

Return target creature card and all other cards with the same name as that card from your graveyard to your hand.

Return target nonland permanent and all other permanents with the same name as that permanent to their owners' hands.

Whenever a creature enters, you may add an amount of equal to the number of creatures you control that share a creature type with it.

Whenever you cast your second spell each turn, draw a card, then create a 0/3 white Wall creature token with defender.

At the beginning of combat on your turn, creatures you control with defender gain exalted until end of turn. (Whenever a creature you control attacks alone, it gets +1/+1 until end of turn for each instance of exalted among permanents you control.)

Whenever Stangg, Echo Warrior attacks, create Stangg Twin, a legendary 3/4 red and green Human Warrior creature token. It enters tapped and attacking. For each Aura and Equipment attached to Stangg, create a token that's a copy of it attached to Stangg Twin. Sacrifice all tokens created this way at the beginning of the next end step.