Mnemonic Sliver

The Sliver design philosophy was always that every body you control becomes a node in a shared network: print one keyword-granting Sliver and the whole board inherits it. Most of the original cycle handed out evergreen combat abilities (flying, haste, pumps). This one is the line's card-advantage outlet, granting every Sliver a sacrifice-for-a-card ability that turns the tribe's biggest structural weakness into a resource. A wide Sliver board normally folds to a single sweeper; here, that same board can be cashed in for cards before it dies, converting otherwise-wasted permanents into draws on the way out. The granted ability requires no colored mana to activate, so it works regardless of what colors a deck runs around it, which matters for a tribe that has always sprawled across all five. What keeps the engine honest is that each card demands both mana and a body, so it drains the same board it draws from rather than spinning freely. It is a quieter member of the cycle than the ones that grant evasion or removal, but it answers the question every go-wide tribal deck eventually faces (what do these creatures do once the alpha strike stalls), and it does so in the color that has historically owned card advantage.