Scripts

The idea was that when Ilia (the main character) attacks the main villain (Nazir), her combat script would be disabled, and Nazir's script would be activated, even though he is defending.
I found my mistake in the script, but it still doesn't work, although the editor has stopped complaining.
I'm writing in the combat script, as a second script, after Ilia's script for casting Ice Block in each battle:

function Nur_battle()

local defH, attH = GetDefenderHero(), GetAttackerHero()

if GetHeroName(defH) == "Nur" and GetHeroName(attH) == "Shadwyn" then
local mana = GetUnitManaPoints(GetDefenderHero())
SetUnitManaPoints(GetDefenderHero(), 200);
repeat sleep(1) until GetUnitManaPoints(GetDefenderHero())==200
for i, creature in GetAttackerCreatures() do
startThread(UnitCastAimedSpell, GetDefenderHero(), 3, creature)
end;
SetUnitManaPoints(GetDefenderHero(), mana);
else
if GetHeroName(defH) == "Shadwyn" and GetHeroName(attH) == "Nur" then
local mana = GetUnitManaPoints(GetAttackerHero())
SetUnitManaPoints(GetAttackerHero(), 200);
repeat sleep(1) until GetUnitManaPoints(GetAttackerHero())==200
for i, creature in GetDefenderCreatures() do
startThread(UnitCastAimedSpell, GetAttackerHero(), 3, creature)
end;
SetUnitManaPoints(GetAttackerHero(), mana);
end;
end;
end;

But when Ilia attacks Nazir, she still casts Ice Block, and Nazir doesn't cast Lightning on her.

What am I doing wrong?)
Maybe Nazir needs to be defined somewhere in the MapScript?

Added 2 minutes ago
That is, I'm writing a second function in the combat script, of course, and not a second script.

Added 4 hours 8 minutes ago
And here's a second question.

I'm trying to set up a Town Portal system, like in Heroes 3.
There are no problems with the main character; she teleports to the right place.
But I would like all the heroes of the first player to be able to teleport through this script.
And here arises the problem of how to identify them - SetObjectPosition(heroName, x, y, floor) requires the name of a specific hero.
But how do I know who will appear in the tavern?

Since I don't know how to identify a hero without a name, I've been trying to copy scripts from the forum, but it doesn't seem to work.
I wrote in the beginning of the MapScript:

kot_heroes={"Shadwyn", "Raelag", "Urunir", "Ohtarig"};

Then I wrote a function:

function Portal_HaladF (heroname)
local Portal_Hero
for key, name in kot_heroes do
if name == heroName then
Portal_Hero=1
SetObjectPosition(heroName, 56, 90, 0);
sleep(1);
end;
end;
if not Portal_Hero then
print("не тот герой");
end;
end;

But all of this doesn't work; the game continues to require the name of the person who will teleport.

How do I write that the hero who used the object should teleport, if this hero belongs to the first player?