At the end of an endless quest... You arrive at final evolution...

Grade 0:
1 Lizard Soldier Conroe
4 Gattling Claw Dragon
4 Blue Ray Dracokid
4 Embodiment of Spear, Tahr
4 Dragon Monk Genjo
[17]

Grade 1:
4 Embodiment of Armor, Bahr
4 Wyvern Guard, Barri
3 Dragon Monk, Gojo
1 Demonic Dragon Mage, Kimnara
1 Heatnail Salamander
1 Flame of Hope, Aermo
[14]

Grade 2:
4 Burning Horn Dragon
4 Cross Shot, Gaap
2 Berserk Dragon
1 Wyvern Strike, Tejas
[11]

Grade 3:
4 Dragonic Overlord
4 Dragonic Overlord The End
[8]

Berserk Dragon doesn't hog as many CBs as you'd think, you only need to get DOTE off once and you win, really. The retiring is way too good. My G1 lineup may need some work, I want to play a second Heatnail but can't find room. Tejas allows me to snipe things like Wingal BRAVE, and 8K Boosters that are placed later in the game, overall I just find it to be a pretty nice tech and it's been working pretty well for me.