Declare Squee and the creature with Breath of Fury attached as attackers.
Squee triggers, creating a 1/1 Goblin creature token that is tapped and attacking.
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 Goblin 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

Squee, Dubious Monarch

Breath of Fury

Goblin Warchief

Goblin Chieftain

Declare the creature with Breath of Fury attached and Squee as attackers.
Squee 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.

Anger

Hellraiser Goblin

Roar of Resistance

Declare The Incredible Hulk and Squee as attackers.
Squee triggers, creating a creature token.
When the creature token enters, Blasting Station triggers, untapping Blasting Station.
Holding priority, activate Blasting Station by tapping it and sacrificing the 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.

Bruce Banner // The Incredible Hulk

Blasting Station

Combos with "Squee, Dubious Monarch"