Tireless Tribe is a fast combo deck that wins by discarding cards to pump Tireless Tribe, then casting Inside Out — a blue instant — to flip its power and toughness for a lethal attack, often protected by Prismatic Strands. Pyroblast and Red Elemental Blast are your primary disruption since they counter blue spells and can hit Inside Out directly on the stack; hold them up whenever your opponent has Tireless Tribe in play and mana available. Galvanic Blast is critical for killing Tireless Tribe at its base 1/3 stats before they begin discarding, so prioritize removing it from the battlefield immediately. Extract a Confession strips combo pieces from their hand as a sorcery, and is especially effective in the early turns before they've assembled their pieces. Apply pressure quickly with Myr Enforcer and Refurbished Familiar so they must combo into open mana, and use the additional Krark-Clan Shaman to sweep Spirit Mascot and Sneaky Snacker if they try to build a board before going for the kill.