For me i suggest in 20 energy is going to fight in arena if you have abp, aap, bbp or termi type or poison type reptile. Try to take arena for me and yeah you need to learn 1 week or 2 is good, well you can learn so fast in arena about in skip round using energy, how to burst down. But if you have a abp (aqua beast plant) with ivory and ronin in aqua axie - tail slap and shuriken good for adventure but you need to get lvl 18 to 20 to pass the ruin 21 to get 200, slp you need to get that lvl for higher damage and health.