Activate Phyrexian Altar twice by sacrificing Triplicate Titan and Slimefoot and Squee, adding ({1} magic symbol) ({B} magic symbol) .
When Triplicate Titan dies, it triggers, creating three 3/3 Golem artifact creature tokens.
Activate Phyrexian Altar by sacrificing two Golems, adding ({R} magic symbol) ({G} magic symbol) .
Activate Slimefoot and Squee by paying ({1} magic symbol) ({B} magic symbol) ({R} magic symbol) ({G} magic symbol) and sacrificing a Saproling, returning it and Triplicate Titan from your graveyard to the battlefield.
When Slimefoot and Squee enter the battlefield, it triggers, creating a 1/1 Saproling creature token.