This build help me to clear out Year 1 bosses.
It should work great in both solo/coop with a variety of spells can help supporting your friend.
Playstyle:
- Get +6 mana in stage 2 to get Circle of Mentalists + 1/2 Attachment to kill shot the Outsider
OR - Buffing Haburat or a Bushido ally to oneshot the boss.
24 reliable allies:
- Cost mostly ranging from 2 - 3 can easily help you to hold out in stage 1 easily.
- Utilize Bushido units and Defense buff from Castle/Spell to clear Minions as well as accumulating "heroic" damage.
- Rebuild from Restless Phalanx & Psychic Shield can help you to hold out from losing by pillaging.
- Playing Akhuti early can help you spamming cards with +1 mana/turn.
11 Spells:
- Mostly 1 cost buff spell, combing with your Castle ability can help you to sustain damage reliably.
- Skytear Mine is a no-brainer with 2 castle healing helps negating the damage from playing "discounted" Thunder Cavalry.
- Dragon Punch can act as an ultimate spell for landing a killing blow on Outsider/Portal/Minion.
2 Tower:
- Steam Tower with 3 charges can help to get you out of sticky situation with +1 damage. Place it in lane 5.
- Farsight Tower with 2 charges can help you to get Attachments from Discards as a safety measures for pillaging.