Illvoi Galeblade

Blue's flash creatures usually carry a price tag for the ambush: a body worth flashing in during combat, a trigger that pays off the instant-speed timing. This one flips the logic. The flying body is almost incidental; what the card actually offers is a delayed cantrip attached to an evasive blocker, held in your hand until the moment you need one or the other. Flash lets it appear as a surprise flyer, trade with an attacker or chump a bigger threat, and then convert into a card the moment it stops being useful on the board. The sacrifice cost keeps that conversion honest: drawing off it is a two-mana investment on top of the one you already spent, so it is never free card advantage, only deferred card advantage that you have already deployed as a creature first. That sequencing is the whole design. You commit a flyer at instant speed, extract value from combat or a race, and cash the leftover chassis for a fresh card rather than watching it rot as a spent 1/1. It rewards holding up mana on the opponent's turn without the dead-draw risk that pure reactive cards carry, because even a whiff turns into a draw step later. A modest, well-built piece of blue interaction that fills the gap between a tempo play and a resource, doing a little of both without excelling at either.