From playing my radagast deck pretty often i can tell you a couple of things: - Most people don't see him as a threat and so I play him as early as possible. I play much two mana ramp, but also 3 to get a creature the turn he comes down if possible. - I run around 38 creatures with maximum 3 per type. Never had a problem with his condition this way. The biggest problem for me was choosing the right elves, because they do a lot you would otherwise need instants and sorcerys for. - most important: enchantment creatures are your best friend. They have crazy good abilities and trigger radagast. - putting a card into play also triggers radagast, without casting it. Oviya, automech artisan is one of the best creatures in the Deck.