Stormcatch Mentor

The cost reduction points in a direction Izzet spells decks had long wanted but rarely got at two mana: instants and sorceries you cast cost one less, which turns every burn spell and cantrip into a partial rebate. That reduction doesn't just save mana; it lets a spell-heavy hand chain further in a single turn, and each of those spells feeds the prowess pump on a body that already comes down with haste and can attack the turn it lands. The 1/1 is deliberately small, because the card is not meant to survive as a threat so much as convert a spell sequence into an immediate clock: cast two cheap noncreature spells and the Otter is swinging for 3, cheaper than it should be to fuel. This is a cost-reducer built for the aggressive end of tempo, where the reduction accelerates the game plan and the prowess-plus-haste package cashes that acceleration into damage rather than card advantage. Goblin Electromancer offered the same one-mana discount on instants and sorceries years earlier, but only ever asked to sit back and enable; this bolts the offensive urgency onto that template, a Wizard payoff that wants to attack the moment it lands. The fragility is the price: at one toughness it dies to nearly everything, so the reward is front-loaded into the turns it lives, and the deck has to be built to make those turns count.