For many Magic players, Elas is the card that got them thinking about Clerics to begin with
11.10 The Company may claim a lien on any goods held by the Company for the Seller until all money payable to the Company by the Seller has been paid and, if it is not paid within 28 days, may exercise a power of sale over those goods
It also has the advantage of being both the best artistic pull and the card most closely tied to the identity of the set, which is a difficult combination for any other card to beat
For example, if two creatures you control with lifelink deal combat damage at the same time, Drogskol Reaver's last ability will trigger twice
1 Traditional foil standard frame rare or mythic rare 1 in 10 Cards appears in surge foil
That being said, outside of helming some Abzan-leaning Kethis, the Hidden HandKethis, the Hidden Hand-filled legends deck, I don't see Esika seeing a lot of love as a commander