Draconic Lore

Draw-three at instant speed has a long, cautious history in blue: the color that most wants raw cards is also the one the game designers most fear handing them cheaply, so the standard price has hovered high enough that the spell reads as a late-game refuel rather than a tempo play. This one attaches the discount to a board condition rather than a resource payment, which is the tell of a tribal payoff. Control a Dragon and the cost collapses to a rate blue does not normally get to touch; control none and you are paying full freight for effect a mono-blue deck could get elsewhere. The design logic is that the discount is not free value tacked onto a Dragon deck but the entire reason to play the card: it prices itself out of a generic control shell and prices itself in for a creature-heavy Dragon build that would ordinarily struggle to find serviceable card advantage in its colors. That inversion (a blue draw spell built for a deck full of big red and multicolor fliers) is the point. The condition checks only that you control a Dragon, not that you cast one or attack with one, so a single resilient body on the battlefield is enough to unlock the rate, which keeps the discount reachable without asking the deck to overcommit.