Against DK, take advantage of his hitbox. Tilts can be spammed to rake up damage, and the tornado is also useful.

And if the DK decides to be smart and start spamming the Giant Punch for super armor?....

I don't let that happen. I keep in shield a lot when I'm back off. As many have said in this thread, putting pressure on DK is a good idea. Super armor can be dealt with, and MK can play around it.

By spamming tilts, I mean specifically using the f-tilt chain about 3 times. If done correctly, he'll be in hit stun.

Not exactly safe, but I guess MK's good cuz he's so small.

MK has more mind game capability to pull it off, at least in my matches.

I was more or less refering to the shield mechs in the game....

Shielding allows a DK that can't super armor run. Also, MK can combo out of shield quickly.

Edit:
BUT DO NOT LET DK GRAB YOU.

You can Ftilt twice, and get a grab in, pretty easily.

DK doesn't IMO actually have much off of grab at mid-to-high percents. At low percents, he kills you. But as long as you don't die from back throw, you're actually pretty safe from his kill moves.

I agree, but still getting grabbed isn't a good idea when you can retreat back with your forward air.

Of course it isn't, utilt juggles MK for years.

Not really.

Whoops, I ment uair.

I wouldn't think MK could get juggled considering his 5 jumps, fast Uspec, and teleport.
..
Then again I don't play MK at all.

Even uair. MK has good combo breakers, can jump 5 times, and has moderately good landing options. He can use dspec or just outrun DK in the air and wait for DK to use a move. I think with proper DI uair can maybe be landed once or twice from low percents, and once at medium-high percents. Combo options that DK has on MK would be pretty slim in my opinion, considering he can just spam the attack button if he really needs to, because nair beats basically everything. I can see grab -> dthrow or fthrow -> nair -> aerial or uspec being a viable combo option, but I think the B&B combos like fthrow -> GP, fthrow -> fair, and uthrow -> uair juggles -> GP don't really work at mid-high percents.