I am assuming you a playing a Johktari Beastmaster, as you mention doing a double move and double cast on turn 1 indicating you have the Fast trait.
I agree with Fentum on the setup. How do you intend to deal with an Aggressive Opponent? Your double move at the beginning makes it easier for them to get to you quickly and start pounding on you sooner, so you're actually reducing the time you have to setup your engine rather than maximizing it. An Adramalech + Warlock tag team can be in your zone attacking after round 2.
I would stick with Enchanter's Ring and Ring of Beast and forget about Defense Ring. It only affects the roll 8% of the time and is not very impressive to me.
Assuming you are getting Druid vs Necromancer:
If your plan is to usually spend your full action summoning a creature and then throwing them at the opponent, might I suggest Lair + Meditation Amulet instead of your current build up. In a single round for the cost of 19 Mana you have increased your mana generation by +5. Compare this to your current strategy which takes 2 rounds to build up, costs 28 mana (for Battle Forge, Harmonize, 2 Mana Crystals, and Moonglow Amulet) to get the same +5 mana generation.
You could actually use this strategy very aggressively if you chose to. Round 1: Sprint to near center, cast Lair in far center, cast Meditation Amulet. Round 2: if your opponent moved any, you could deploy a Timber Wolf, quick cast Rouse the Beast, and attack your opponent immediately. If your opponent had not moved, you could deploy a Fast creature instead and still attack immediately. Then just keep up the pressure with a constant stream of animals.
Meanwhile, if you decide to go with a more Defensive Mindset as originally intended, you just keep the Lair closer to home where it is less vulnerable. Then on round 2 you do a little extra development instead of Rousing the Beast right away. You could deploy a Timber Wolf, then meditate, then cast a Mana Flower. Alternatively, you could deploy a level 1 animal (any of your choice), then meditate, and cast that Battle Forge you wanted.
Hopefully I haven't overstepped my bounds with tweaking your build. It just occurred to me that with the Meditation Amulet and Lair you could do essentially the same strategy with less action/mana investment.