Melee Attack Roll: Bonus equals your spell attack modifier, reach 5 ft. Hit: Force damage equal to (summonSpellLevel - 4)d4 + 3|1d4 + 3, (summonSpellLevel - 3)d6 + 3|2d6 + 3 + your spellcasting ability modifier (Large), or (summonSpellLevel - 3)d12 + 3|2d12 + 3 + your spellcasting ability modifier (Huge).