Jace's Triumph

Divination has anchored the floor of blue card advantage for as long as blue has had a floor: three mana, two cards, no conditions. What this adds is a rider that pays out a third card for controlling a Jace, a planeswalker-matters incentive that costs nothing when you fail to meet it. That gating is the whole design. Unconditional draw-three at this cost would be pushed past what blue is meant to get, so the extra card sits behind a board state you had to assemble first, and the spell stays honest whether or not you got there. It belongs to a family of hooks written to reward loyalty to a named character rather than a generic type, part of a broader push to make the marquee planeswalkers the center of a deck rather than one more threat among many. Strip off the rider and this is a serviceable refill; with a Jace already resolved, the same three mana buys a lopsided grip. The condition does the balancing, and it asks you to have already won the exchange it then rewards.