The benefit of doing so is that when these time counters are all removed, you can play the card for free
that's so good
It doesn't seem like it should work, and nowadays you would be right
Use Attunement to fill the graveyard with enchantments, bring them all back into play with one fell swoop using Replenish, and have one of them be Opalescence so you can attack for twenty the following turn
Nissa, Resurgent Animist Double or something This three-mana Green 3/3 sees Nissa no longer being all Phyrexianed up, and also going back to her roots - which is a big old pun that were not going to apologise for because thats just how this whole thing goes
Yes, it can get you the extra turn and generate the card advantage that can inevitably get you closer to a bonafide win condition, but it still can whiff, too, and many times just delays dying by a turn