When the land enters the battlefield, it triggers.
Holding priority, activate
Ashnod's Altar by sacrificing the land, adding ({C} magic symbol) ({C} magic symbol) .
When the land dies,
Enduring Renewal triggers, returning the land to your hand from your graveyard.
Resolve the land's trigger from step 3, causing you to put the land onto the battlefield from your hand, draw a card, and then decline to put another land onto the battlefield.