pre req: explosive fireball, explosive lightning or any other explosive spell

• 5 mages minimum
• 10 minutes to cast each spell
• 10 seconds to unleash (once cast can be held indefinitely)
  • Spell stays where it is until unleashed
  • If you leave it disintegrates
  • You can have as many as you want in the chamber, cast for hours, then yeet
• Spells deal 6d damage over a 5 yard diameter impact zone
• One spell for each element: water fire earth air
  • fire: leaves the area burning
  • air: all knockback (12d impact)
  • water: half knockback and half damage
  • earth: leaves stone
• 5 energy per spell (divided among the group)
• Range: every 200 yards is -1 (they do lob)