When Bloodline Necromancer enters the battlefield, it and Flameshadow Conjuring trigger.
Resolve the Bloodline Necromancer trigger, returning a Vampire or Wizard creature card from your graveyard to the battlefield.
Activate Thermopod's second ability by sacrificing Bloodline Necromancer, adding ({R} magic symbol) .
Resolve the Flameshadow Conjuring trigger, causing you to pay ({R} magic symbol) to create a token copy of Bloodline Necromancer with haste.
When the token Bloodline Necromancer enters the battlefield, it triggers, returning the nontoken Bloodline Necromancer from your graveyard to the battlefield.
Repeat from step 2.
Results
Infinite creature tokens with haste.
Infinite death triggers.
Infinite ETB.
Infinite LTB.
Infinite red mana.
Infinite sacrifice triggers.
Return all Vampires and Wizards from your graveyard to the battlefield.