The Infinity Stones of Six Gods

The Infinity Stones of Six Gods kept secrets that Thanos can have.
 * Tesseract- Tezcatlipoca
 * Hollow of the Heart-Shaped Herb Tree of Wakanda- Hades
 * Aether- Amatsu-Mikaboshi
 * Necklace of Agamotto- Nergal
 * Orb- Loki
 * Scepter of the Chitauri- Set

Together, the Infinity stones make Thanos more powerful.