The Echo Window

How it works

1. A creature attack creates Echo only when an eligible response exists.
2. The defender chooses one eligible attached or Scheme response, or passes.
3. The attacker may choose one legal Reply only when a card explicitly grants one.
4. Resolve the Reply, then the defender's response, then surviving combat.

Rules this mechanic controls

• The defender chooses one eligible attached response or passes.
• The attacker may use one legal Reply only when an effect explicitly permits it.
• Resolve the attacker's Reply, then the defender's response, then combat.
• Online Echo choices auto-pass after the displayed timer; passing does not reveal a hidden trap.

Worked example

An attacker declares combat into an ARMED defender. The defender reveals one trap. The attacker has a card that explicitly permits a Reply and uses it. That Reply resolves first, then the trap resolves, and combat occurs only if the relevant creatures remain able to fight.

Limits and availability

Related mechanics