Warpten spams prayer of healing on lifetapping warlocks during Magmadar and Garr to obtain extremely high hps. The result of this exploited log gets him not only rank 1 allstar for MC, but also rank 1 for a complete raid in MC for phase 3.
https://classic.warcraftlogs.com/zone/rankings/1000#metric=hps&partition=2&class=Healers
Magmadar:
https://classic.warcraftlogs.com/reports/CgDnyPXBTdZWwKbk#type=healing&fight=11
https://classic.warcraftlogs.com/reports/CgDnyPXBTdZWwKbk#type=casts&fight=11&ability=11689
Garr:
https://classic.warcraftlogs.com/reports/CgDnyPXBTdZWwKbk#type=healing&fight=25
https://classic.warcraftlogs.com/reports/CgDnyPXBTdZWwKbk#type=casts&fight=25&ability=11689