It's great for bouncing with the help of Kor Skyfisher and Glint Hawk, makes for good sacrificial fodder to Deadly Dispute, Kuldotha Rebirth, and Krark-Clan Shaman, and can even just be re-equipped if your creature dies
Aerith Gainsborough's second ability triggers just once for each life-gaining event, whether it's 1 life from Al Bhed Salvagers or 3 life from Balamb T-Rexaur
If the target nonland permanent is illegal as Argent Dais's last ability tries to resolve, it won't resolve and none of its effects will happen
The triggered ability that creates the copies can itself be countered by anything that can counter a triggered ability
Its got some large shoes to fill thanks to the legacy of the plane, as well as the rotation itself - and while it doesnt have to fill them entirely, it at least has to sell us some equally comfortable ones