After all, you can use Eerie Interlude to save all of your creatures from imminent destruction, but you can also simply include this card in a deck that's chock-full of creatures with enter the battlefield effects
It lets you return cards to your hand, which is great
Skithiryx, the Blight Dragon, is an intimidating mono-black Commander that quickly racks up poison counters

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Lets get that number up
Those creatures gain flying until end of turn