Best attach strategy for town hall 12 is Queen Charge LavaLoon
Army Composition.
.4 Lava Hounds
.24 Balloons (mix of regular and loon level 8+ for better damage)
.5 Healers
.2 Wizards
.1 Poison Spell
.2 Rage Spells
.1 Heal Spell
.1 Freeze Spell
.Heros.
. Clan troops