Warehouse Tabby + Enchanted Evening + Phyrexian Altar

Warehouse Tabby

Enchanted Evening

Phyrexian Altar

How it works

1. Activate Phyrexian Altar by sacrificing an additional creature, adding one mana of any color.
2. When the creature dies as an enchantment due to Enchanted Evening, Warehouse Tabby triggers, creating a 1/1 Rat creature token.
3. Repeat.

With Enchanted Evening blanketing the battlefield, every single permanent you control—including tokens and creatures—becomes an enchantment in addition to its other types. This massive type-shift turns Phyrexian Altar from a simple mana producer into a grim altar of recycling, letting you sacrifice creatures to generate any color of mana. As those creatures perish, Warehouse Tabby watches them go; because every creature is now an enchantment, the Tabby triggers upon their death to immediately replace them with a 1/1 Rat token. Feeding these new Rats right back into Phyrexian Altar closes the loop, establishing an infinite engine of sacrifices, death triggers, and colored mana.