Mesmeric Sliver

Fateseal is the rare keyword that only one tribe ever truly cared about, and this is the card that hands it to them en masse. The mechanic itself is the inverse of scry: instead of fixing your own draws, you peek at the opponent's top card and decide whether to bury it. On a single body that effect is marginal, the kind of soft disruption that costs the opponent a turn at best. The design here is that the trigger is granted to all Slivers, so a board that floods the table turns one minor look-and-bottom into a recurring tax on the opponent's draw step: every Sliver that enters after this one, regardless of who controls it under the old shared-hivemind rules of the era, brings another fateseal with it. That is the load-bearing idea, and it is also why the card sits at the quieter end of the Sliver canon. The tribe's iconic members hand out evasion, haste, sacrifice outlets, regeneration: things that win combats and close games. Fateseal grinds, it does not finish. What this represents is a designer poking at the question of whether incremental card-quality denial could ever be a tribal payoff, stacking enough small triggers to matter. The answer the lineage gave, over many sets, was that Slivers wanted to attack, not durdle, and the disruption hivemind never materialized.