Talon Sliver

First strike is the keyword that bends combat math hardest, and that is the entire job here. The original Tempest Slivers each pinned one ability onto every Sliver on the table, building a lattice where no single body matters but the stack does: haste, flying, toughness, and this one. First strike is the cruelest layer because it does not add a number to the team, it rewrites the rules of the exchange. Trades that should be even become one-sided; a wall of small bodies suddenly eats anything that swings into it, and a Sliver army becomes a board the opponent has no profitable way to block. The buff is symmetric, which was the catch every original Sliver carried before the design later moved toward your-Slivers-only wording: it blankets every Sliver in play, so a mirror collapses into a stalemate where neither side wants to attack into a forest of first strikers. On its own this is a 1/1 first striker, the flat cost of a lord whose value lives entirely in how many creatures share its type. The reward is exponential rather than additive: every Sliver you control gets the keyword, and every Sliver you draw later inherits it for free.