History of Imbaru Engine

The Imbaru Engine is a puzzle activity in Savathûn's Throne World (Court of Savathûn), launched from the H.E.L.M., added in Season of the Witch. Imbaru is paracausal tribute gained through deception.

Tests

Gift of Cunning (correct chests by Hive rune), Gift of Strength (kill order; needs a card from Savathun's Spire), Gift of Navigation (match rune and element), and A Parting Gift (collect flames, solve symbol puzzle). A wrong choice applies the Imbaru debuff, which kills in about 3 seconds.

Rewards

Six legendary weapons and the Veiled Tithes armor, plus a Haruspex triumph. Sources differ slightly: Destinypedia lists the Altars of Summoning area; Shacknews places it in the Altars of Summoning.