This is an Otter spellslinger tempo deck. It fields cheap creatures and Otter tokens, then chains low-cost instants, sorceries and other noncreature spells, so every cast pumps the team through prowess and Bria hands each creature prowess and makes one unblockable per spell. Cost reducers, mana-neutral cantrips and flash-speed casting let many spells fire in a single turn, stacking temporary power and Otter-specific pumps onto attackers that can't be blocked. How it wins: It attacks with a wide or heavily pumped board of prowess creatures made unblockable by Bria's cast triggers, finishing with direct damage from per-spell pings and burn. Key roles: - Prowess army and tokens: Small creatures and Otter tokens that all gain prowess from Bria and grow with each noncreature spell, becoming the evasive damage source (Stormchaser's Talent, Ral, Crackling Wit, Coruscation Mage) - Otter tribal pumps: Otter-matters effects give the team an extra +1/+1 and untap it on every cast, enabling combat tricks and pseudo-vigilance, while also discounting Otter-conditional draw (Valley Floodcaller, Pearl of Wisdom, Kitsa, Otterball Elite) - Cheap cantrip chain: Free or near-free spells that draw or refund mana, adding cast triggers for prowess, Bria's unblockability and magecraft without costing tempo (Manamorphose, Frantic Search, Ponder) - Spell engines: Permanents that reduce spell costs or turn each instant and sorcery into cards, keeping the chain fueled for big multi-spell turns (Stormcatch Mentor, Archmage Emeritus, Treasure Cruise) - Direct damage reach: Per-cast pings and burn close out op

Bria, Riptide Rogue decklist

• 2× Archmage Emeritus
• 4× Coruscation Mage
• 4× Frantic Search
• 7× Island
• Kitsa, Otterball Elite
• 4× Lightning Bolt
• 2× Manamorphose
• 5× Mountain
• 4× Pearl of Wisdom
• 4× Ponder
• Ral, Crackling Wit
• 2× Arcane Denial
• 4× Shivan Reef
• 4× Spirebluff Canal
• 4× Stormcatch Mentor
• 4× Stormchaser's Talent
• Treasure Cruise
• 2× Valley Floodcaller