this 1 maybe
local combat1 = createCombatObject()
setCombatParam(combat1, COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
setCombatParam(combat1, COMBAT_PARAM_EFFECT, CONST_ME_GROUNDSHAKER)
setCombatFormula(combat1, COMBAT_FORMULA_SKILL, 1.7, -200, 1.7, -200)
local combat2 = createCombatObject()...