My recommendation would be to go for blisters, rarity rarely goes wrong
Theyre built to integrate perfectly with the Beast Jr
However, aggression should be a last resort for the deck
Beast Within and Generous Gift are popular spells that can be used to deal with a variety of threats
But draw, removal and recursion differ from ramp in that you just need to see them in order to benefit, and they rarely matter in the developing stages of the game
After the first turn, Search for Tomorrow is generally worse than other options, which makes drawing multiple bad and makes drawing it in hands that need to use Arcums Astrolabe for green bad, so Ive gone down to one, since it is the best first-turn play if you have it, and Im also playing one Sakura-Tribe Elder, one Cultivate, and one Kodamas Reach