mtg card spikes Force Spike | Legends You gain 2 life. Spike Feeder

Maelstrom Wanderer One of the downshifts from mythic to rare, Maelstrom Wanderer is a fan favorite for not just having cascade, but having it twice

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These cards work exactly the way you asked, you cast one half of the card for the casting cost, get that effect and the whole card goes to the graveyard

Plus, Im also not a big fan of playing cards from exile cards that Wizards of the Coast (WotC) has been pushing lately, at least not in Commander

Unfortunately this is limited mostly to creatures and not permanents of other varieties

It's toolbox-like nature makes it very powerful against a wide range of things, and Natural Order for Atraxa just seems pretty insane especially if you can put a Yorion into play and blink it