Aven Courier

Counter-copying is usually a matter of quantity: proliferate adds one more of everything already present, and doublers scale what a permanent already carries. This one works differently, moving a counter type rather than a number. On the attack trigger, it reads the counters spread across your board and copies one kind onto a permanent that lacks it, so the effect is lateral distribution instead of vertical stacking. That distinction shapes how a counter-matters deck sequences: a +1/+1 counter can seed a bare creature, a keyword counter can be handed to a fresh threat, and a permanent that has never carried a given kind can be brought into the fold one combat at a time. Because the ability fires on declaration, not on damage, a chump block does not switch off the engine; only removing the bird before combat does. The 1/1 flying body is the price for that flexibility, giving you an evasive attacker cheap enough to keep swinging while it widens a synergy web. It contributes nothing without an existing counter to copy, so it is built to extend a board already committed to the counters axis rather than to start one. The "if it doesn't have a counter of that kind" clause is the balancing wrinkle: it cannot double up on a single permanent, which forces the effect to spread outward across your creatures rather than pile onto one overloaded threat.