Altar of the Brood Combos
Altar of the Brood + Ashes of the Fallen + Phyrexian Altar
Altar of the Brood + Felidar Guardian + Restoration Angel
Aminatou, the Fateshifter + Felidar Guardian + Altar of the Brood
Aminatou, the Fateshifter + Spark Double + Altar of the Brood
Esix, Fractal Bloom + Avenger of Zendikar + Altar of the Brood
Combo result
Infinite mill. Near-infinite creature tokens. Near-infinite ETB.
Prerequisites
Avenger of Zendikar in hand. All other permanents on the battlefield. Each opponent has no more than ninety-one cards in their library. You control at least nine lands. You have not created a token this turn. {G}{G} available.
Felidar Guardian + Altar of the Brood + Clever Impersonator
Felidar Guardian + Altar of the Brood + Phyrexian Metamorph
Felidar Guardian + Altar of the Brood + Spark Double
Marrow-Gnawer + Thornbite Staff + Altar of the Brood
Combo result
Infinite creature tokens. Infinite ETB. Infinite LTB. Infinite sacrifice triggers. Infinite mill.
Prerequisites
All permanents on the battlefield. Thornbite Staff attached to Marrow-Gnawer. Marrow-Gnawer is not summoning sick. At least 2 other rats on the battlefield under your control.