Its a nice reminder that there are other ways to bolster Modern outside of printing brand new cards
You can't use Yuffie's last ability to try to attach an Equipment to Yuffie if that Equipment can't legally be attached to Yuffie
Prices may vary depending on the age and popularity of the set, but very rarely beyond what Id consider an agreeable margin
Emmara, Soul of the Accord should likely be replaced by Rhys the Redeemed, while Kutzil, Malamet Exemplar and King Darien XLVIII are solid upgrades
Having this buddy sat on the board will give virtual card advantage by the bucket load, too, and will force opponents to spend removal to solve your failsafes
Also Lightning Bolt working as a Giant Growth in certain situations, such as dodging an opposing Bolt for example, has blown me out in many games