Once per day, a taiga giant may perform a 10-minute ritual to tap into the power and insight of his ancestral spirits. These spirits provide diadavantage on any attacks that go against this creature's AC, immunity to enchantment and illusion spells, and one of the following spell effects: bless, endure elements, protection from evil, protection from good, or see invisibility. The effects of a spirit summoning persist for 24 hours.