MTG >Combos >Whitemane Lion +Phyrexian Altar +Gandalf the White +Arahbo, the First Fang +

1 - Summon White-Mane Lion; 2 - Arahbo, Roar of the World's ability triggers twice, create two feline tokens; 3 - White-Mane Lion's ability triggers, return White-Mane Lion to hand; 4 - Activate Phyrexian Altar twice, sacrificing the two feline tokens, and add WW; 5 - Repeat from (1)