MTG >Combos >Mortus Strider +Aluren +Phyrexian Altar +

With Aluren and Phyrexian Altar in play, cast Mortus Strider without paying its mana cost. Sacrifice Mortus Strider with Phyrexian Altar to add one mana of any color. Mortus Strider's ability will trigger, returning it to your hand. Repeat the process for infinite mana.