Vial Smasher the Fierce

Partner usually means nothing more than two commanders sharing a deck, each contributing an ability you use on your own schedule. This Goblin rewrites the math: it makes the simple act of casting your first spell each turn into a damage trigger scaling with that spell's mana value, so the second commander you build around becomes ammunition rather than a separate plan. The friction is randomness. You do not pick the target; an opponent is chosen at random each turn, which makes the damage real but undirected, a tax levied on the whole table instead of a finishing line aimed at one player. That coin-flip targeting is what keeps the trigger from being a clean kill button, and it is also what makes the card a magnet for any partner that hurls out enormous mana values: cast a twelve-drop as your first spell and someone absorbs twelve, dealer's choice. The clause worth reading carefully is "your first spell each turn." It reads the cast spell's mana value, so the deck wants the most expensive single spell it can afford early, not the most expensive permanent on the battlefield. Note the distinction reanimation builds get wrong: Reanimate triggers Vial Smasher for its own mana value of one, not the colossal creature it returns, because that creature is never cast. A 2/3 body that bleeds the table for double digits before combat is an asymmetry built on raw casting cost, and it has anchored a Partner archetype devoted to making turn-one-spell as expensive as the table can stand.