Rereleased cards aren't worth anything like the original vintage card, but they are still very popular today
This is a great way to punish opponents for casting cantrips in Legacy and large draw spells in Commander
The common is a three drop, 1/2 taps for no mana to give any dork a power and toughness boost equal to the Elf count, and like the Wellwisher, this is all the Elves, not just yours
progression offers a ton of potential damage, and finding a basic with the Secret Entrance is less likely to allow one player to bury the other in card advantage than a one-sided Howling Mine
Dusknoir would suffer the same fate, except I see some possible use because it can share a line with the other Dusknoir, which already has seen fringe play
As for the sideboard, I'm not too impressed by Illness in the Ranks and might rather just pay full price and get Curse of Death's Hold.