Viashino Outrider
A 4/3 for is a body that should not exist at that price, and echo is the bill that comes due. The mechanic front-loaded tempo and back-loaded the real cost, a kind of installment plan stapled to a creature, and the design here strips away every cushion: no enters-the-battlefield value, no death trigger, no consolation for walking away from the payment. The structure bites harder than the rate suggests because echo fires on the upkeep before the creature can do anything, and it has no haste. Cast it and it sits; come back around and it only attacks if you have already paid
that same upkeep. Decline, and a turn and a card have bought you a creature that dies before it ever swings. That reframes the question from "is the second attack worth three mana" to "is this beater worth funding twice before it connects once." Echo aged poorly as a mechanic precisely because of designs like this, where the deferred price arrives in front of any reward, and Wizards never brought it back in earnest. What it preserves is a clean read of an idea Magic tried once and largely shelved: how aggressive a creature could be when the cost was postponed rather than discounted, and how quickly a player learns that postponed is not the same as cheap.
