http://www.youtube.com/watch?v=Ik6WvtqPb3s#t=36m06 vs DRN(Fox, Wario) DRN uses Metaknight from 00:00 to 24:19
youtube.com/#/watch?v=BoyiblES6-0 DRN(Metaknight) vs Reflex(Wario)
Some friendlies that I used Metaknight in. The first half is me playing as Falco so view at your own discretion. ^_^
In the first game vs. DRN's
:
Your mental offensive game is good when you have the momentum and your opponent is pressured, but your technical game and follow-ups are poor (e.g. glide attack at 0% and following up with... dash attack; hitting a fast-faller with glide attack at 0% should be ~50%). Furthermore, your glide options at neutral were terrible; gliding from full hop or higher while on stage at neutral is a guaranteed hit for pretty much every high-tier and glide attacking when your opponent only needed to take a step forward for a guaranteed shield grab on reaction. Your ledge trapping was non-existent and you kept going for gimps. Against spacies, MK, or other characters who can quickly and laglessly cover horizontal distances as a mix-up it's generally better to safely cover possible options while not putting yourself in a position to be hit (e.g. whiffing a retreating FH Dair on stage when you think that they're going to go for the ledge).
You can use tilts to space out and/or acquire a space that you feel comfortable to begin safely attacking. When you immediately cancel your Up-B, it's safer if you DI away from your opponent so that you're essentially retreating it. Try to recover with Down-B more; it option-selects well and when people try to punish it they either leave themselves open for something else that you can easily react to. An example being: By grabbing the ledge early and either hanging their and allowing you to Up-B them or trying to get back on stage by a ledge roll and allowing you to Neutral B, initiate glide pressure from an Up-B, etc.
First game vs. DRN's
:
Standing in shield is a highly overrated option. Dashing is bad at neutral and you got hit by Down-B, Dair, etc. for it. Generally how I've started playing is to play extremely defensively and throw out safe baits until I get some information on my opponent that I can use to begin applying safe pressure and reads (a certain red bird calls this "The Rain"). Wario can't really get on and land strong kill moves vs. MK at neutral. He requires MK to make a mistake or commit to something unsafe (e.g. air dodge). Your preference for Dsmash over tilts should have gotten you Fsmashed, but DRN's inexperience with Wario was showing. Even though I say this, you are quite blessed to have a training partner as generally talented as Chas.
Reflex' video isn't coming up when I try to paste the link. Sorry for not giving better advice but I hope it helps; I'm still trying to learn those MUs myself and I use a rather off-color
anyway.
EDIT: I forgot to add that you don't know how to take hits and give away free strings (I'm very guilty of that myself). and to broaden why standing shield is bad; you don't want to be sitting still vs. any character; it's virtually always better to be mobile. Mobile hit boxes increases your denial zone area and shift your vulnerable zones which optimally causes your opponent to be aiming for a target that isn't actually there.