Hazaa for Renmiri!
Small explanation:

Leader with a sole purpose - Leads the Clan Centurio to defeat Yiazmat
After disaster struck - His master was killed by 'the creature'
Six different attempts - His 5 brothers and sisters have all been trying to find someone to defeat it.
Only I could Avenge. - Only Montblanc was successful, by choosing you, kupo!

Glad you got it, have a turn.