While everyone else is trying to race, you're playing chess
Common keywords are: [20] Bodyguard: Your opponent must choose a card with Bodyguard during a challenge if theyre able to
and offer a suggestion on the first card youll want to update the deck with
Animus of Predation Armed // Dangerous Atarka, World Render Cabaretti Initiate Deathleaper, Terror Weapon Disciplined Duelist Domri Rade Drizzt Do'Urden Indominus Rex, Alpha Jetmir, Nexus of Revels Kathril, Aspect Warper Loot, the Pathfinder Majestic Myriarch Marisi's Twinclaws Okoye, Mighty and Adored Picnic Ruiner Rafiq of the Many Rayami, First of the Fallen Roar of the Fifth People Runes of the Deus Samut, Voice of Dissent Samut, the Tested Sangrite Surge Savageborn Hydra Selective Adaptation Toph, Greatest Earthbender Trostani, Three Whispers Veteran Cathar
That being said, you can allow Acererak's trigger to return it to your hand instead of the command zone and continue to cast it again and again until you complete the dungeon
The addition of flash is what makes this card so good.One of the biggest drawbacks of removal on creatures is that most of them can only be cast at sorcery speed