Stensia Masquerade

Two anthem effects share one enchantment, and the way they feed each other is the point. The first strike clause is a flat, tribe-agnostic combat upgrade: any attacker you control trades up, killing lesser blockers before they can swing back. The counter clause is the Vampire-specific payoff, and the two loop. First strike protects your attackers through combat, so the Vampires that connect survive to collect their +1/+1 counter, and each counter makes the next swing harder to block profitably. A board of small Vampires compounds fast: every successful hit permanently raises the floor, so what starts as a mob of one- and two-drops becomes a wall of threats the defender can no longer trade into.

Madness is what fits the enchantment to its tribe rather than just its color. Vampire decks of this design lineage leaned on discard outlets and loot effects, so pitching this and casting it from exile keeps the curve flowing, letting you deploy it on a turn you would otherwise sandbag it in hand. And because the anthem is live the instant it resolves, casting it pre-combat with a board already down turns that same turn's attack into a first-strike swing, and every Vampire that lands a blow earns its counter off the trigger. It does not wait: resolve it on a developed board and it pays out that combat, which is what makes emptying your hand into it feel less like a tempo cost than an ignition.