Unless it's Sunfall (or the game has gone long enough that it can be Lay Down Arms) most Atraxa decks can get her back for another turn, and a full grip
Attach the red (positive) clamp to the positive terminal of the dead battery
Special Guest: Yoji Shinkawa Sleeves Code | Secret Lair - MTGA code the following 4 sleeves: Tezzeret the Seeker Sleeve, Phyrexian Metamorph Sleeve, Skullclamp Sleeve, Solemn Simulacrum Sleeve from the October 2022 Superdrop Secret Lair
If your opponent's monster has a higher ATK, decrease it with the effect of "Masked HERO Koga"
The Dark Magician may not be able to fuse with copies of itself, but, at least on the show, its involved in the summoning of several other spellcasters that are just as powerful
So is sacrificing them to Professional Face-Breaker to churn through your library