Illusory Master

Your experience with illusory magic has granted you greater understanding of its art. You gain the following benefits:

• Increase your Wisdom score by 1, to a maximum of 20.
• You have advantage on saving throws against illusions.
• When you hit a creature with an attack on your turn, that creature can't turn invisible until the start of your next turn.
• You can cast disguise self using your Firbolg Magic trait at will, without expending a spell slot