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And of course, Sword of Hearth and Home

If Unidentified Hovership's second ability exiled more than one card (possibly because another effect caused it to trigger an additional time), each player who owns one or more of the exiled cards manifests dread

a werewolf with bloody claws

Playability Tax

A surveil trigger during each of your upkeeps can fill your graveyard consistently, then you can trade in this enchantment for a flood of tokens

Not quite the traditional Fling effect (here your opponent can remove the sacrificed creature in response to casting the spell), but it has upsides in that the creature itself deals damage to the target, so deathtouch or lifelink will work (as will abilities that trigger when the creature deals the damage)