K here we go
Before we begin, let's get some things out of the way. Rosalina is top/high tier. Zelda is "bottom" tier. Obviously there's going to be preconceptions on both sides that this is obviously in Rosalina's favour due to the pessimistic views of many Zelda mains and, well, the egotism of being top tier.
I don't think so.
First, let's start with Rosa.
Rosalina:
+ excellent spacing with and without Luma
+ Jab that interrupts pretty much anything
+ Luma gives her great kill power
+ u air kills off the top with Luma
+ comboes out of her u throw, d throw, and b throw (depending on DI)
+ Decent speed
+ Decent aerials
+ F tilt
+ Ledge cover options (through Luma or aerials)
- Tall, easy to hit
- Very light
- Dies really early
- Some characters take Luma out with ease, removing some kill power and spacing tools.
- Recovery
Zelda:
+ Excellent kill power
+ Early kills & early kill set ups
+ Great offstage game
+ Very strong follow ups out of down throw (depending on DI)
+ Excellent ledge trump options
- Tall, easy to hit
- God awful neutral
- Slow and laggy
- Requires a great deal of proper spacing and zoning
- Light weight
Now into the meat of this match up.
Rosalina is basically Zelda with less kill power and faster attacks and overall speed. Luma is basically a respawnable familiar containing Zelda's kill power. With Luma, Rosa is great and can do a lot of damage.
Here's the problem.
Zelda bodies Luma. Over half of our moveset can take the sad little thing out easily. Without Luma, Rosa's approach kind of... sucks. It's like as bad as ours. Zelda can't approach, and Rosa can't approach. Rosa will have to use speed to her advantage here.
Zelda kills Rosa faster than Rosa kills Zelda. We have overall better kill power than Rosa does.
Rosa's Tilts (against Zelda)
F tilt: Great spacing tool. This can help keep Zelda out. Luma helps with this also, but against a good Zelda, your Luma's going to be dead most of the time.
D tilt: Awkward. This can be used for spacing. It can also knock you out of some grabs if Luma is alive.
U tilt:
Sure, it has a lot of kill power with Luma. Luma's dead, tho. Rip. This will have niche application since we usually don't want to be right above you (or anyone), but I suppose it can stop us from getting set ups with d air (yea, we have set ups stfu).
Rosa's Smashes
F smash: Kill move. Will do the job if you don't have Luma, but at slightly high percentages.
D smash: Lame. This move comes out really fast (likes ours did in brawl) and can help get Zelda off of you.
U smash: Annoying hitboxes will help seal the kill if you catch us in the air with it.
Rosa's Aerials
N air: This is a neat move. At high percent, SH N air can catch people off guard with Luma. Luma's dead tho so...
*Zelda's F tilt beats Rosa's N air
F air: Follow up from B throw if U throw and D throw follow ups aren't available because Luma. Also for catching off stage. Can also hit with it and land to cause a spike which can follow up to D smash. Not a bad move.
U air: The one and only. This move let's you get your low % KOs on us.
If Luma is alive. And it's not. So you can just use this to try and cover your ledge return or keep your vertical area covered.
D air: Lasting hitboxes interrupt Farore's Wind. Unfortunately, yours is really weak, so it won't do much here. Don't even think about Luma's d air lol.
Rosa's Recovery
God awful. If anything, this is what makes the match up. Your recovery is so bad, we can either:
A. Shut it down with D air and get easy (and early) kills.
B. Stop it at the ledge with d tilt, leading to follow ups
C. Niche usage, but it's possible for Phantom to wall your recovery and stop you from getting back to the ledge.
D. Ledge trump. Zelda has great ledge trump options. Rosa also probably doesn't have what it takes to get back on stage without getting punished hard. Your recovery is also linear enough for us to do this with ease.
Luma
(If Luma is alive somehow, it can't edgeguard us with jab since we can just hit it from below if we want to, or with Phantom. OR we could send out phantom and hit you for being greedy instead
)
Killing
Ok, we're both lightweight. We're gonna be dying early. Zelda has better kill power than you. Zelda's elevator will kill you earlier than you can kill her. With full rage, you're seeing a death at 30%. (I did this against Frozen on ladder
)
Rosa needs Luma for a lot of her kill potential, but in this case, you have moderate kill power due to our weight. However, you're so utterly helpless offstage, you're probably going to be dying early.
Stages
Rosa loves platforms in this match up. Your aerials give you advantages over us, and platforms help with that.
Other notes:
Down B makes phantom unusable here, but still a safe option due to our endlags.
Down B
doesn't absorb Din's. This can help to stop approach against Rosa or (god knows how) force an approach. It also hits Luma for the EZ kill.) Rosa's speed lets her easily get past this, though, so don't worry about it.
Nayru's Love
doesn't reflect Starbits. Starbits aren't actually possible to reflect.
60:40
Zelda's favour
You die at sad percents. Use your speed wisely in this matchup, since Zelda is
sooooo slooooow and it'll primarily be Rosalina without Luma. Make full usage of your zoning, too.
Zelda's lame space clone loses this one