Just pick a legend you enjoy and play.
This already works well with the handful of zombie-synergies in Kaldheim (Narfi, Betrayer King, Draugr Necromancer, Draugr Recruiter, Priest of the Haunted Ridge), but even if you're not after opponents' braiiiiinsss, options abound
Defense counters for siege-type battles are technically given to your opponent, adding to their total life pool
The deck is made up of seven different monsters, which all had their own personalities in the series, and they all contain a similar ability: When theyre destroyed by battle or card effect, they can go to the Spell & Trap Zone as a face-up Continuous Spell rather than go to the graveyard
Ally of Justice Field Marshal X DARK Level 9 [ MachineSynchroEffect ] ATK 2900 DEF 2600 1 Tuner + 2+ non-Tuner monsters Must be Synchro Summoned