Dross Scorpion + Elemental Mastery + Biotransference + Phantom Train

Dross Scorpion

Elemental Mastery

Biotransference

Phantom Train

How it works

1. Activate the creature with Elemental Mastery attached by tapping it, creating a number of 1/1 Elemental creature tokens with haste equal to its power.
2. Activate Phantom Train by sacrificing an Elemental.
3. When the Elemental dies as an artifact due to Biotransference, Dross Scorpion triggers, untapping the creature with Elemental Mastery attached.
4. Resolve the Phantom Train ability.
5. Repeat.

This clever loop turns the raw power of Elemental Mastery into an infinite manufacturing plant by transforming your creatures into artifacts using Biotransference. When you tap the enchanted creature to flood the board with haste-granting tokens, you can feed those newly minted artifact creatures to Phantom Train's sacrifice ability. Every time an Elemental bites the dust, Dross Scorpion's watchful eye catches the artifact's death and automatically untaps your master generator, letting you repeat the entire process endlessly to amass infinite creature tokens, sacrifice triggers, and counters.