local defH, attH = GetDefenderHero(), GetAttackerHero()
if defH then --If a defending hero is present (an attacking hero is always present), then...
  if GetHeroName(defH) == ".." and GetHeroName(attH) = "...." then --If a specific hero is defending, and another specific hero is attacking, then...
    --Further actions with the heroes; defH contains the name of the defending hero, attH contains the name of the attacking hero
   --Also, for this second script, remove the check if Level_R>20 (and its else and end) — is this a check for Raileigh's level?
    --Your code...
  end
end