While the four reprinted legends are fairly heavily played, with both Bruna, Light of Alabaster and Daxos of Meletis in the top eight UW commanders on EDHREC, Bosh, Iron Golem as the 19th most played red commander according to EDHREC, andBudoka Gardener just barely cracking the top 50 for green commanders, no amount of playability can overcome the lack of numbers compared to previous years
You don't have to pick the same number every time, you can adjust Talion every time you have him come into play to match what the table is playing
Even better, you could have a card like Kamiz, Obscura Oculus Connive
With this, Marwyn is able to encourage victory through Commander damage since you will be playing so many Elves
A neat little detail is that this commander gives decayed to any creatures it steals, which essentially removes any intent of actually keeping your opponents things for long