Captain America vs Iron man [Avengers: Infinity War Edition] The infinite source

[Verse 1: Iron Man]
You know it's Iron Man, the iron one, and that's with or without the suit
Guardian of the human race and I bring in all the loot
A mastermind to tell the truth, the Captain simply can't compute
A test tube hero, so you know where you can stick your boot
The one and only Tony Stark, yes sir, it's my given name
Made it to the top of the hill but wasn't given fame
Earned my reputation and you only took a shot
So you may be my elder BUT IRON MAN IS YOUR POPS!

[Verse 2: Captain America]
Lets take it back to '41 when I was fighting with the Axis
Powers, I'm powerful, and Tony Stark would be practice
The first super solider, the first on the front line
I'll beat a metal bitch down, I don't need a punchline (Yeah)
Put on the suit, you'd still be a dead man
And by the time I finished you'll be pissin' in a bed pan
The teams need a leader, and you're cut, so don't suit up
The captain makes the calls AND YOU COULD NEVER FILL MY BOOTS UP!

[Verse 3: Iron Man]
I don't need to fill your boots, I'm the Iron Man, damn it
Leader of the Avengers even though I didn't plan it
Became a protective S.H.I.E.L.D and Guardian of the planet
Standing tall above the rest and little Stevie can't stand it
I'll go Super Sonic Flight Mach 3 in your face, Cap
Outdated, outmatched, think it's time that you face that
Rising to the challenge in the future like before
BUT YOU'RE AN UNGRATEFUL BITCH SO WE CAN GO TO CIVIL WAR!