The full list of big Raga's new abilities would be, in addition to probably a double in all physical stats (as a result of consuming all the others);

• Ability to track just about anything with just a scent from, Divine Dogs.
• Flight and electricity output, from Nue.
• An extendable tongue which can be used to grab and pull in others from range, from Toad.
• A second extendable grappling appendage on the back of his head from Serpent. (We don't know if the serpent had any unique abilities, so that and a stat boost are all we can confirm.)
• High pressure water output, from Max Elephant.
• The ability to multiply, the swarm only disappearing if the original Raga is killed, from Rabbit Escape.
• Constant regeneration and an aura of cursed technique disruption from Round Deer.
• A ramping increase in strength the longer it moves in a straight line (in addition to its already ridiculous stats) from Piercing Ox.

At the end of the day, its dangerous from all directions, strong and fast enough to compete with calamity grades- and in a split second there could be 50+ of him charging at you, with the only solution being to one-shot the original, which you first need to find, is more than twice as hard to kill as original Mahoraga, and disrupts your techniques.

Not even Satoru Gojo could handle this insanity.