Nightveil Specter
The hybrid mana is the entire argument here. Three flexible pips mean a 2/3 flier that any mono-blue or mono-black deck can field without splashing, which is what turned a guild-flavored midrange body into a single-color aggressive staple. The combat trigger reads like incidental card advantage, but the effect is sharper than it looks: exiling the top card of the defending player's library is mild disruption against combo and a slow mill clock against control, and the permission to play those lands and cast those spells points the value at your opponent's deck, not your own. A flier that steals resources every time it connects fits any board that already wants to keep swinging. Three toughness does the real work of keeping the engine online: it ducks under most one-mana burn and survives the small blockers an evasive two-power creature draws, so it keeps landing hits rather than trading once and vanishing. A 2/2 in the same slot is a one-time tax; the extra point of toughness is what compounds the exile trigger into a recurring theft that actually accrues. The design's cleverest move is that its color requirements barely constrain where it can be cast: a creature built for two guilds that ended up equally at home in either of the single colors that make it.
