Merrow Levitator

Tapping a creature to grant flying is the kind of activated ability that usually fires once and then sits dormant through the rest of combat. The untap trigger rewrites that cadence: every blue spell you cast offers to stand the Levitator back up, so in a deck built to chain blue spells across a turn, one tap can hand flying to a string of attackers (or reset for a defensive grant on the crackback). The synergy is built for density rather than splash, asking you to count how many blue cards you can reliably cast in a turn before it earns a slot. The 2/3 body is sized to outlast the early ground creatures that would otherwise punish a tapped-out mana base, keeping it alive long enough to keep activating. This sits in a line of permission-granting Wizards whose value scales with the rest of the spellbook: low individual impact, but a multiplier on a coherent blue shell. Idle on its first activation, lethal in a spells-matters build where the untap is the difference between tapping once and tapping as often as you keep casting.