Adrix and Nev, Twincasters, Auton Soldier, and Adeline, Resplendent Cathar

Prerequisites

• Adrix and Nev, Twincasters on the battlefield
• Auton Soldier on the battlefield
• Adeline, Resplendent Cathar on the battlefield
• You have at least two opponents
• Auton Soldier does not have summoning sickness

Steps

1. Declare Auton Soldier as an attacker
2. Auton Soldier's myriad ability and Adeline trigger
3. Resolve the Auton Soldier trigger, creating four token copies of itself as a nonlegendary copy of Adrix and Nev attacking each other opponent
4. Resolve the Adeline trigger, creating 2^(the number of Adrix and Nevs you control) 1/1 Human creature tokens tapped and attacking each opponent

Results

• Near-infinite creature tokens that are tapped and attacking
• Near-infinite ETB