Titan's Bedevilment

You allow the horrifically grand tales of a particularly powerful devil to flow thru the target  This spell attempts to grant the target a sliver of the power of this devil. For the duration, the targets form takes on devilish cosmetic traits, including horn growth,  and the following enhancements:

• the targets size becomes one size category greater.
• The targets reach is doubled.
• the target counts as a fiend for spell/effects, this replaces your native classification 
• Double weapon and unarmed strike damage, not bonuses or features.
• the target gains a +4 to Constitution score to a maximum of 20.
• the target has advantage on Strength and Constitution saving throws.
• the target spouts wings and gains fly speed equal to its movement speed

The spell does not require concentration if cast as a ritual spell.

At Higher Levels.

When you cast this spell using a spell slot of 7th level you gain following additional effects:

• the targets size becomes Two size categories greater.
• The targets reach is tripled.
• the target gains a total of +6 to Constitution score, to a maximum of 24.
• the target's movement speed is increased by 15 ft  
• this spell duration becomes 2 hours or until the concentration is lost

When you cast this spell using a spell slot of 9th level you gain following additional effects:

• the targets size becomes Three size categories greater.
• The targets reach is quadrupole.
• the target gains a total of +6 to Constitution score, to a maximum of 30.
• the target gains a total of +4 to strength score, to a maximum of 24.
• the target's movement speed is increased by a total of 30 ft  
• this spell duration becomes 3 hours or until the concentration is lost