Dogmeat, Ever Loyal Combos
Dogmeat, Ever Loyal + Gift of Immortality + Phyrexian Altar
Dogmeat, Ever Loyal + Kaya's Ghostform + Phyrexian Altar
Jinnie Fay, Jetmir's Second + Dogmeat, Ever Loyal + Breath of Fury
Combo result
Infinite combat phases. Infinite combat damage. Infinite ETB. Infinite LTB. Infinite death triggers. Infinite sacrifice triggers. Infinite untap of creatures you control.
Prerequisites
All permanents on the battlefield. Breath of Fury attached to another creature you control that does not have summoning sickness. An opponent cannot block creatures you control.