[J0BL3SS]

public void OnPluginStart2()
{
	HookEvent("arena_round_start", Event_RoundStart);
	HookEvent("teamplay_round_active", Event_RoundStart); // for non-arena maps
	
	HookEvent("arena_win_panel", Event_RoundEnd);
	HookEvent("teamplay_round_win", Event_RoundEnd); // for non-arena maps
}

public void Event_RoundStart(Event event, const char[] name, bool dontBroadcast)
{
	ClearEverything();
	
	MainBoss_PrepareAbilities();
	CreateTimer(1.0, TimerHookSpawn, _, TIMER_FLAG_NO_MAPCHANGE);
}

public Action TimerHookSpawn(Handle timer)
{
	HookEvent("player_spawn", Event_PlayerSpawn);
}

public void Event_PlayerSpawn(Event event, const char[] name, bool dontBroadcast)
{
	int UserIdx = GetEventInt(event, "userid");
	
	if(IsValidClient(GetClientOfUserId(UserIdx)))
	{
		CreateTimer(0.3, SummonedBoss_PrepareAbilities, UserIdx, TIMER_FLAG_NO_MAPCHANGE);
	}
	else
	{
		FF2_LogError("ERROR: Invalid client index. %s:Event_PlayerSpawn()", this_plugin_name);
	}
}

public Action SummonedBoss_PrepareAbilities(Handle timer, int UserIdx)
{
	if(!FF2_IsFF2Enabled() || FF2_GetRoundState() != 1)
		return;

	int bossClientIdx = GetClientOfUserId(UserIdx);
	if(IsValidClient(bossClientIdx))
	{
		int bossIdx = FF2_GetBossIndex(bossClientIdx);
		if(bossIdx >= 0)
		{
			HookAbilities(bossIdx, bossClientIdx);
		}
	}
	else
	{
		FF2_LogError("ERROR: Unable to find respawned player. %s:SummonedBoss_PrepareAbilities()", this_plugin_name);
	}
}


public void MainBoss_PrepareAbilities()
{
	if(!FF2_IsFF2Enabled() || FF2_GetRoundState() != 1)
	{
		FF2_LogError("ERROR: Abilitypack called when round is over or when gamemode is not FF2. %s:MainBoss_PrepareAbilities()", this_plugin_name);
		return;
	}
	for(int bossClientIdx = 1; bossClientIdx <= MaxClients; bossClientIdx++)
	{
		int bossIdx = FF2_GetBossIndex(bossClientIdx);
		if(bossIdx >= 0)
		{
			HookAbilities(bossIdx, bossClientIdx);
		}
	}
}


public void Event_RoundEnd(Event event, const char[] name, bool dontBroadcast)
{
	ClearEverything();
}

public void HookAbilities(int bossIdx, int bossClientIdx)
{
	if(bossIdx >= 0)
	{
		//Hook the global variables, abilities.
	}
}

Currently What im using in my abilitypacks to be make compatible with ff2_summonaboss