In short, to be considering Radagast, you need to be a very diverse, creature-heavy deck
Specifically, the English set, which launches May 30, 2025, contains cards from a combination of the Heatwave Arena and The Glory of Team Rocket expansions
With most of these cards also being on the Reserved List, you can be confident your investments will, at a minimum, hold their value
With your Orc Army on the battlefield, the easiest way to keep discarding and drawing cards is to give it some kind of evasion
Best Dragon Commander Enablers and Payoffs Dragons are interesting in that some of the best payoffs are just the other dragons in your deck
Etchings of the Chosen could also fit nicely here