It's a mana sink, and if your dork brings mana with it, like Priest of Gix, then you can make infinite blinks and then many more combos too
Keiga, The Tide Star
Red: Summon: Esper Valigarmanda - Red 4s tend to be a dime a dozen in cubes with rares in them, but not a lot stand out from the crowd aside from Headliner Scarlett (since it usually just ends the game) and Pyrogoyf (which usually kills something, or someone.) I like that this does what the usual haste suspects do - deal some form of evasive damage, but this one lets you eventually cast something from the graveyard if it survives, which is a good bonus if this doesnt just die in combat
If you like Magic the Gathering
If, for any target, you can't choose a new legal target, then it remains unchanged (even if the current target is illegal)
Instead, I want to give Bolt Bend the dues it deserves