Invasion of Amonkhet // Lazotep Convert | Ojer Axonil, Deepest Might // Temple of Power | Goblin Bombardment

Cards

Ojer Axonil in your graveyard.
Invasion of Amonkhet // Lazotep Convert and
Goblin Bombardment on the battlefield.

Defeat
Invasion of Amonkhet.
Invasion of Amonkhet triggers, causing you to exile it, and return it to the battlefield transformed as Lazotep Convert.
Choose to have Lazotep Convert enter the battlefield as a copy of
Ojer Axonil that is a 4/4 Zombie.
Activate
Goblin Bombardment by sacrificing Lazotep Convert.
When Lazotep Convert dies, it triggers, causing you to exile it, and return it to the battlefield transformed as Lazotep Convert.
Choose to have Lazotep Convert enter the battlefield as a copy of
Ojer Axonil that is a 4/4 Zombie.
Resolve the
Goblin Bombardment ability, dealing damage equal to Lazotep Convert's power to any target.
Repeat from step 4.