Because of repeated play, wear on cards define modern valuations
Its exclusivity and character popularity keep it valuable in mid-tier collector rankings
Unlike Skirsdag High Priest itself, the two other creatures you tap to activate its ability aren't required to have been under your control continuously since the beginning of your most recent 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
For us, the card reinforced that sometimes the landscape of Commander changes, and what might have been problematic in one era wasnt as much of an issue in another
Please note that correct judgments cannot be made after the battle has progressed