We’re working our way through giant themes for characters, so today is bards! I think bards would get a little Loki touched with a new bardic college…..
Student of Loki
Some bards learn from time honored traditions, some get an education in buildings where the elders teach the young, and then some like you get a little more “hands on” training. Your master isn’t exactly kind, nice, or clear in his instructions, but he does grant you more power than you thought you would ever have.
Silver-Tongued Devil
When you start receiving instruction from Loki at 3rd level, you gain expertise as a rogue in Charisma(persuasion), Charisma(deception), and Wisdom(insight). Double the number of bardic inspiration dice you receive.
Master of Illusion
Also at 3rd level, you learn the secrets far beyond most others, but only to lie to others. Add all illusion spells on the wizards spell list to the available spells you can cast.
Believe Your Own Lies
At 6th level, you learn the secret of being the best liar-believe your own lies. When you cast a spell, you can spend two bardic inspiration dice to cause the target to have disadvantage on any saves for that spell. You must spend two dice per target of the spell.
Learn the Masters Touch
Starting at 14th level, the master has finally taught you the true ropes. When you make a Charisma check, you can expend one use of Bardic Inspiration to gain advantage on the roll.
Throat Punch Games 
I really like the idea but it seems overpowered. Adding accessibility to all illusion spells at 3rd level seems a bit much. Also, bards get the whole add 1/2 proficiency to all untrained. It seems you’re giving them a feat too at 3rd level too.