Clearing team (Explosive) on top, Bossing team (Mystic) on bottom
Turn 1: Attack the enemy to the right with your Clearing team, then swap places with your Bossing team and use the teleporter. (Bossing team will be attacked by Enemy to left.)
Turn 2: Grab the giftbox to the right with your Bossing team. Clearing team waits at bottom Start. (Skip this step to clear in 5 turns)
Turn 3: Move Bossing team up to (4), and move Clearing team down.
Turn 4: Move Bossing team up to (1) and teleport. Move Clearing team down to (3). (Clearing team will be attacked by Enemy to left.)
Turn 5: Attack enemy to the left with Bossing team, and attack enemy to the right with Clearing team.
Turn 6: Kill the boss with Bossing team for 6-turn clear.
(Skip the giftbox and go directly to (4) on turn 2 for a 5-turn clear)