Rancor Combos
Incubation Druid + Cloudstone Curio + Rancor
Tormod, the Desecrator + Phyrexian Altar + Rancor
Tatsunari, Toad Rider + Gatherer of Graces + Rancor
Siona, Captain of the Pyleas + Rancor + Phyrexian Altar
Rancor + Phyrexian Altar + Warehouse Tabby
Rancor + Phyrexian Altar + Composer of Spring
Rancor + Phyrexian Altar + Archon of Sun's Grace
One with the Kami + Rancor + Phyrexian Altar
Combo result
Infinite creature tokens. Infinite colored mana. Infinite ETB. Infinite LTB. Infinite death triggers. Infinite sacrifice triggers. Infinite storm count.
Prerequisites
All permanents on the battlefield. One with the Kami attached to any creature you control. Rancor attached to any creature you control except the creature with One with the Kami attached.
Mycosynth Lattice + Krark-Clan Ironworks + Rancor
Ajani's Chosen + Rancor + Phyrexian Altar
Historian's Boon + Rancor + Phyrexian Altar
Eutropia the Twice-Favored + Scurry Oak + Rancor
Eutropia the Twice-Favored + Herd Baloth + Rancor
Enigmatic Incarnation + Timestream Navigator + Rancor
Combo result
Infinite turns.
Prerequisites
All permanents on the battlefield. You have the city's blessing. Timestream Navigator does not have summoning sickness. Rancor attached to any other creature except Timestream Navigator. {U}{U} available on your first turn, with {G}{U}{U} available on each extra turn.