A fairly simple mid game strategy (Classic mode), only tested on ranking 1000-1500. Before using this strategy, be sure to have at least 6 gold miners and 2 mana miners. Also, have at least 2 castle archers, 3 are preferred. No need for middle, put there is no harm in having middle tower as well; doesn't have to be protected.
Having your castle archers as defense, train 12 speartons. Train at least 4 archers to take down any albatrosses, keep them in the back. If enemy has any poison dealing troops, train 1 meric with poison cure between speartons and archers. When all units are assembled, attack middle tower (if not already), then regroup and retrain any units that died. Send a scout swordwrath, if enemy have walls, train 1 magikill. When magikill arrives, attack. Be sure to manually control meric and magikill to destroy walls and assist, and that they don't stray too far. When combating army with archers, have 3 speartons target them specifically.
This strategy works on giant + meric pairs, spearton + archer groups, and swordwrath rushes.

Feedback and questions are welcomed.

Most strategies from the start of the game. It's because what you do early game will most likely lead up to middle game army.

Are you...turtling or are you attacking? What the heck do you need triple CA for?

Quote from DragonArcherZ

Are you...turtling or are you attacking? What the heck do you need triple CA for?

Honestly, I only use castle archers if I am on the defense or if I anticipate a rush of some kind.

What if they get a mage, or get a shadowrath to kill your mage

to be completely honest this strategy is more of a defense strategy or maybe turtling. also you would need upgraded speartons to make this work. otherwise they would rush your meric, and magikill. then only have 12 speartons to deal with (provided you have 12 speartons after building up your economy making merics and magikills, and making 3 freakin CA)