[emho24]

Thanks all for the assistance. Below is what I ended up writing for levels up to 70. It will iterate through the hailing pc's group and give them the level appropriate buffs.
I didn't bother testing group buffs, I just buffed everyone with the single target versions.
I'm still an extreme novice with Perl but I'm learning (I'm mostly proficient in C#, Java).

sub EVENT_SAY
{
	my @groupMembers;
	
	if( $text =~ /hail/i )
	{
		if($client->IsGrouped())
		{
			for($count = 0; $count < 6; $count++) 
			{
				my $cur = $client->GetGroup()->GetMember($count);
				if($cur) 
				{
					if($cur->IsClient()) 
					{
						push @groupMembers, $cur;
					}
				}
			}
		}
		else
		{
			push @groupMembers, $client;
		}
	
		BuffMembers(\@groupMembers);

		$npc->Say("Use them wisely " . $client->GetCleanName());
	}
}

sub BuffMembers
{
	my $members = shift;

	my %buffBot;
	# Levels 1 to 35
	$buffBot{"tier1"}{Cleric}{HP} = 312;			#Valor / 32
	$buffBot{"tier1"}{Cleric}{SpellHaste} = 3576;		#Blessing of Faith / 35
	$buffBot{"tier1"}{Druid}{HPRegen} = 144;		#Regeneration / 34
	$buffBot{"tier1"}{Druid}{RunSpeed} = 11545;		#Spirit of Wolf / 10
	$buffBot{"tier1"}{Enchanter}{ManaRegen} = 174;		#Clarity / 26
	$buffBot{"tier1"}{Enchanter}{MeleeHaste} = 10;		#Augmentation / 28
	$buffBot{"tier1"}{Magician}{DamageShield} = 479;	#Inferno Shield / 28
	$buffBot{"tier1"}{Shaman}{HP} = 167;			#Talisman of Tnarg / 32
	
	# Levels 36 to 55
	$buffBot{"tier2"}{Cleric}{HP} = 1533;			#Heroism / 52
	$buffBot{"tier2"}{Cleric}{SpellHaste} = 3576;		#Blessing of Faith / 35
	$buffBot{"tier2"}{Druid}{HPRegen} = 1568;		#Regrowth / 54
	$buffBot{"tier2"}{Druid}{RunSpeed} = 11545;		#Spirit of Wolf / 10
	$buffBot{"tier2"}{Enchanter}{ManaRegen} = 1693;		#Clarity II / 52
	$buffBot{"tier2"}{Enchanter}{MeleeHaste} = 1708;	#Aanya's Quickening / 53
	$buffBot{"tier2"}{Magician}{DamageShield} = 412;	#Shield of Lava / 45
	$buffBot{"tier2"}{Shaman}{HP} = 1585;			#Talisman of Kragg / 55
	
	# Levels 56 to 70
	$buffBot{"tier3"}{Cleric}{HP} = 5257;			#Conviction / 67
	$buffBot{"tier3"}{Cleric}{SpellHaste} = 5258;		#Blessing of Devotion / 67
	$buffBot{"tier3"}{Druid}{HPRegen} = 5342;		#Oaken Vigor / 66
	$buffBot{"tier3"}{Druid}{RunSpeed} = 11545;		#Spirit of Wolf / 10
	$buffBot{"tier3"}{Enchanter}{ManaRegen} = 5513;		#Clairvoyance / 68
	$buffBot{"tier3"}{Enchanter}{MeleeHaste} = 5507;	#Speed of Salik / 67
	$buffBot{"tier3"}{Magician}{DamageShield} = 5466;	#Fireskin / 66
	$buffBot{"tier3"}{Shaman}{HP} = 5396;			#Wunshi's Focusing / 68
	$buffBot{"tier3"}{Shaman}{MeleeDodge} = 5390;		#Spirit of Sense / 66
	$buffBot{"tier3"}{Shaman}{MeleeProc} = 6667;		#Spirit of the Panther / 69
	
	foreach my $member (@{$members})
	{
		my $clientLevel = $member->GetLevel();
		
		if($clientLevel >= 1 && $clientLevel <= 35)
		{
			my $tier = "tier1";
			$npc->SpellFinished($buffBot{$tier}{Cleric}{HP}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Cleric}{SpellHaste}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Druid}{HPRegen}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Druid}{RunSpeed}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Enchanter}{MeleeHaste}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Enchanter}{ManaRegen}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Magician}{DamageShield}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Shaman}{HP}, $member, 0); 
		}
		elsif($clientLevel >= 36 && $clientLevel <= 55)
		{
			my $tier = "tier2";
			$npc->SpellFinished($buffBot{$tier}{Cleric}{HP}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Cleric}{SpellHaste}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Druid}{HPRegen}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Druid}{RunSpeed}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Enchanter}{ManaRegen}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Enchanter}{MeleeHaste}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Magician}{DamageShield}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Shaman}{HP}, $member, 0); 
		}
		elsif($clientLevel >= 56 && $clientLevel <= 70)
		{
			my $tier = "tier3";
			
			$npc->SpellFinished($buffBot{$tier}{Cleric}{HP}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Cleric}{SpellHaste}, $member, 0);
			$npc->SpellFinished($buffBot{$tier}{Druid}{HPRegen}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Druid}{RunSpeed}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Enchanter}{ManaRegen}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Enchanter}{MeleeHaste}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Magician}{DamageShield}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Shaman}{HP}, $member, 0); 
			$npc->SpellFinished($buffBot{$tier}{Shaman}{MeleeDodge}, $member, 0);
			$npc->SpellFinished($buffBot{$tier}{Shaman}{MeleeProc}, $member, 0);
		}
	}
}