Declare the creature with Breath of Fury attached and Adeline as attackers.
Adeline triggers, creating a creature token.
Deal combat damage using the creature that has Breath of Fury attached. 
Breath of Fury triggers, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to the creature token, then causing you to untap all creatures you control and to get an additional combat phase after this one.
Repeat each combat phase.

Infinite combat damage

Infinite combat phases

Infinite death triggers

Infinite ETB

Infinite LTB

Infinite mana creatures you control can produce

Infinite sacrifice triggers

Infinite untap of creatures you control

Infinite creature tokens with haste

Infinitely powerful creature

Breath of Fury

Adeline, Resplendent Cathar

Rising of the Day

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

Near-infinite creature tokens that are tapped and attacking

Near-infinite ETB

Mondrak, Glory Dominus

Auton Soldier

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

Ojer Taq, Deepest Foundation // Temple of Civilization

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

Adrix and Nev, Twincasters

Declare the creature with Breath of Fury attached as an attacker.
Adeline triggers, creating a 2/2 creature token with haste tapped and attacking each opponent.
Deal combat damage using the creature that has Breath of Fury attached. 
Breath of Fury triggers, causing you to sacrifice the creature it is attached to, then attach Breath of Fury to a Cat token, then causing you to untap all creatures you control and to get an additional combat phase after this one. 
Repeat each combat phase.

Near-infinite creature tokens with haste

Jinnie Fay, Jetmir's Second

Declare The Incredible Hulk and Adeline as attackers.
Adeline triggers, creating a number of creature tokens.
Holding priority, activate Goblin Bombardment by sacrificing a creature token, dealing 1 damage to The Incredible Hulk.
The Incredible Hulk triggers, putting a +1/+1 counter on it, then untapping it and causing you to get an additional combat phase after this one.
Repeat each combat phase.

Infinite creature tokens

Infinite damage

Bruce Banner // The Incredible Hulk

Goblin Bombardment

Declare the additional creatures as attackers, ensuring each creature is attacking a different opponent.
Adeline triggers, creating a token copy of Master of Cruelties due to Esix that is tapped and attacking each opponent.
When each Master of Cruelties is not blocked, they trigger, setting each opponent life total to one.
Deal combat damage with the additional creatures, causing each opponent to lose the game due to having zero or less life.

Each opponent loses the game

Near-infinite lifeloss

Esix, Fractal Bloom

Master of Cruelties

Combos with "Adeline, Resplendent Cathar"