I previously wrote about Zendikar Rising Limited on my personal blog and am pleased to be able to expand on my earlier insights here
While I think a Commander like Sidar Jafar of Zhalfir is a little more constricting in terms of deck design compared to a Commander like Y'shtola, Night's Blessed, I do really like all the intricate synergies you can include in a Sidar deck You also have multiple ways to protect your board state from sweeper effects, like Knights' Charge and Guardian of Faith
Just look at this How does one evaluate a card like this in a draft where you can also open Sol Ring, Swords to Plowshares, Flash, Ancestral Recall, The One Ring, Ragawan, Force of Will, Lightning Bolt and all the other very, very powerful cards that are in the Vintage Cube
One copy climbed as high as $4.27, but most NM sales hover around the $2.20 range
If it doesn't exist, then the card is legal
eBay Is Testing Out $1 USD Shipping for Trading Cards 45 million cards have been sold on eBay in 2020 alone