Hornet Queen dies, triggering Mortuary, putting Hornet Queen on top of your library from your graveyard.
Activate Call of the Wild by paying ({2} magic symbol) ({G} magic symbol) ({G} magic symbol) , revealing Hornet Queen from the top of your library and putting it onto the battlefield.
Hornet Queen enters the battlefield, creating four 1/1 Insect creature tokens.
Activate Phyrexian Altar three times by sacrificing three Insect tokens, adding ({2} magic symbol) ({G} magic symbol) .
Repeat.
Once you have infinite mana, you may activate Call of the Wild's ability to put all creature cards from your library onto the battlefield.
Results
Infinite colored mana.
Infinite creature tokens.
Infinite death triggers.
Infinite ETB.
Infinite LTB.
Infinite sacrifice triggers.
Infinite self-mill.
Put all creature cards from your library onto the battlefield.