Phyrexian Altar | Dualcaster Mage | Ascend from Avernus

Cards

({4} magic symbol) ({R} magic symbol) ({R} magic symbol) ({W} magic symbol) ({W} magic symbol) ({W} magic symbol) available.

Cast
Ascend from Avernus by paying ({3} magic symbol) ({W} magic symbol) ({W} magic symbol) ({W} magic symbol) .
Holding priority, cast
Dualcaster Mage by paying ({1} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Dualcaster Mage enters the battlefield, creating a copy of
Ascend from Avernus.
Activate
Phyrexian Altar by sacrificing
Dualcaster Mage, adding one mana of any color.
Resolve the copy of
Ascend from Avernus, returning all creature and planeswalker cards with mana value three or less from your graveyard to the battlefield.
Repeat from step 3.