Module:AttackSpell

local p = {}

function p.calc_hit(frame)

 local hit_adder = tonumber(frame.args[1])
 local hit_num = tonumber(frame.args[2])
 local hit_denom = tonumber(frame.args[3])
 local power = tonumber(frame.args[4])
 local powercap = tonumber(frame.args[5])
 if not hit_adder or not hit_num or not hit_denom or not power or not powercap then
   return frame.args[1]
 end
 if power > powercap then
   power = powercap
 end
 return tostring(hit_adder + power * hit_num / hit_denom)

end

return p