Sentinel of the Pearl Trident
Most blue flicker effects cast a wide net: any permanent, any creature, sometimes anything you control. This one is leashed to historic permanents (artifacts, legendaries, Sagas), and that restriction is what defines it. The 3/3 body is beside the point; the value lives in the flash timing. Holding it up lets you re-fire an enters-the-battlefield trigger on a legendary in response to removal, exile your most important artifact past a board wipe, or reset a Saga at instant speed. Read the return clause carefully: the permanent comes back at the beginning of the next end step under its owner's control, so the protection spans exactly one window rather than parking a card in exile indefinitely. That makes it a reactive tool for threading a single exchange, not a value engine for grinding. Blink had long been white and blue-white territory; pinning a flash-speed version to historic permanents gives the effect a target restriction that scales with how legendary-heavy a deck is built, instead of letting it flicker an opponent's threat or a plain value creature. The design trades reach for a self-limiting cost: the more historic permanents you run, the more this can do, and a deck built without them leaves it stranded.
