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.