yu gi oh master duel deck builder Untapped.gg Help with which deck to

Nekroz of Valkyrus Technically it is a tech option because it is not integral to the decks success, but I highly recommend it for its BP-ending effect

See the image below for a current example of this

Sort Card Type Iron Treads #118Uncommon $0.14 Iron Treads #116Common $0.11 Iron Treads #51Uncommon $0.12 Iron Treads (Master Ball Pattern) #116Common $2.28 Iron Treads (Mirror Foil) #116Common $0.64 Iron Treads (Temporal Forces Stamped) #118Uncommon $0.43 Iron Treads ex #143Double Rare $1.03 Iron Treads ex #66Double Rare $0.48 Iron Treads ex - 058/078 #58Double Rare $0.25 Iron Treads ex - 073 #73Promo $0.85 Iron Treads ex - 096/078 #96Super Rare $1.26 Iron Treads ex - 103/078 #103Special Art Rare $5.63 Iron Treads ex - 132/190 #132Double Rare $0.24 Iron Treads ex - 143/198 #143Double Rare $0.58 Iron Treads ex - 233/198 #233Ultra Rare $1.17 Iron Treads ex - 248/198 #248Special Illustration Rare $5.49 Iron Treads ex - 333/190 #333Shiny Secret Rare $0.63 Iron Treads ex - 103/078 #103Special Art Rare $5.63 Iron Treads ex - 248/198 #248Special Illustration Rare $5.49 Iron Treads (Master Ball Pattern) #116Common $2.28 Iron Treads ex - 096/078 #96Super Rare $1.26 Iron Treads ex - 233/198 #233Ultra Rare $1.17 Iron Treads ex #143Double Rare $1.03 Iron Treads ex - 073 #73Promo $0.85 Iron Treads (Mirror Foil) #116Common $0.64 Iron Treads ex - 333/190 #333Shiny Secret Rare $0.63

Self-contained ways to generate two permanents heading to the graveyard is awesome