You’ve seen it happen. You’re in a Room Match or an Open League finals, and this serene, soft-spoken girl with long brown hair suddenly turns into a literal demon on the final straight. She blows past your speedsters like they’re standing still. That’s Grass Wonder. But if you’ve tried to train her yourself, you might have realized she’s surprisingly finicky. You can’t just throw random speed cards at her and hope for the best. Honestly, most players mess up her stamina or fail to account for her unique positioning. This Uma Musume Grass Wonder Guide is going to break down why she’s a powerhouse and how you can actually stop her from finishing in 8th place.
Grass isn't your typical runner. She’s a "Betwixt" (Betweeners/Sashi) specialist who thrives on chaos. While the meta often favors Leaders or Runners because they're "safer," a well-built Grass Wonder is the ultimate equalizer against whales.
The Grass Wonder Identity Crisis
Grass Wonder is a Mile and Medium distance expert. Her base stats give her a 10% bonus to Speed and a 20% bonus to Power. This is a dream. Why? Because as a Sashi (Betweener), she needs that raw Power to push through the crowd when the final corner hits. If her Power is low, she gets blocked. She gets "boxed in." You’ll watch her struggle behind a wall of other girls while the Leader finishes the race comfortably.
Her unique skill, Spirit's Rest, is a bit of a legend in the community. It triggers when she overtakes someone in the final half of the race. If you're in the back half of the pack, she gains a significant speed boost. It’s glorious. But here is the catch: if she’s too fast early on and ends up in 3rd or 4th place too early, her skill might not trigger effectively, or she won't get the full benefit of the "overtaking" logic. You want her lurking. You want her being a bit of a menace in the shadows.
Distances and Surfaces
She’s got an A in Grass (obviously) and an A in Mile and Medium. Don't even bother with Long distance unless you have some serious inheritance luck. Her base Stamina is just okay. Trying to make her a stayer is a recipe for a DNF or a pathetic crawl to the finish line. Stick to her strengths.
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Training the Beast: The Stats That Actually Matter
Focusing on Speed is a given. Everyone knows Speed is king. But for a Sashi girl like Grass, Speed is nothing without Power. Think of it like a sports car. Speed is the top end, but Power is the acceleration that gets you out of a traffic jam.
- Speed: Aim for at least 1000-1200 depending on your scenario (URA, Aoharu, or MNT).
- Power: This needs to be high. 900+ is the sweet spot. Her 20% growth rate makes this easier than it looks.
- Stamina: For a Mile race, 600 plus a gold recovery skill is plenty. For Medium, you’ll want 700-800.
- Guts: Don't ignore it entirely in the 2026 meta, but don't obsess. 400 is fine.
- Intelligence: 600. You need her to actually use her skills. A Grass Wonder that doesn't trigger her gold skills is just a girl going for a jog.
It's tempting to go all-in on Speed support cards. Don't. You need at least two Power cards or a very strong Power inheritance to make her viable. If she can't burst through the line, she's useless.
The Skill Trap: What to Pick and What to Skip
People love "Non-Stop Girl." It’s a great skill. But on Grass, it can be redundant if you haven't fixed her positioning first.
Rising Dragon is her signature gold skill. It's an acceleration boost that triggers during overtakes. It is non-negotiable. If you aren't picking this up, you aren't playing Grass Wonder. You're playing a generic horse girl with a fan.
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You also need to look at Speedster if you're running her in Mile races, though that's more of a Leader skill. For her Sashi role, look for Switching Gears or Outflank. These help her find the lanes. Remember, the biggest enemy of this Uma Musume Grass Wonder Guide strategy is the "Blocked" notification.
Support Card Recommendations
- Kitasan Black (SSR): Look, it’s the gold standard for Speed. Use it if you have it.
- Oguri Cap (SSR/SR): Great for those Power boosts and Sashi-specific hints.
- Vodka (SSR): Essential for "Ascending Dragon" (the gold version of her overtake skill) if you aren't getting it from her awakening.
- Rice Shower (Power SSR): If you're struggling with Stamina on Medium tracks, Rice is a lifesaver.
Inheritance is Not Optional
You cannot fix a bad build with just training. You need the right parents. Look for Blue Stamina 9-star factors if you want to focus your training sessions on Speed and Power. If you're going for a Mile build, maybe go for 9-star Power factors.
But the real secret? Red factors. Get her Mile or Medium rating to S. The difference between an A and an S in distance aptitude is roughly a 5-10% speed modifier in the final stretch. In a game of inches, that's the difference between a trophy and a "Good Job!" participation prize.
Dealing with her "Mood"
Grass Wonder has a reputation for being a bit... difficult during training. Her random events can sometimes tank her motivation or give her the "Overweight" status if you aren't careful. Keep a Tazuna or an Afternoon Kashiwagi card in your deck if you're a beginner. Keeping her in "Perfect" mood is worth the extra turn spent at the shrine. The 20% stat gain bonus during training is too big to ignore.
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The Strategy: Sashi vs.先行 (Leader)
Can you run her as a Leader? Sure. She has a B in it. A few inheritance points and she's an A. But why would you? Her unique skill is literally designed for overtaking. If she’s at the front, she’s not overtaking. You’re wasting her potential.
Keep her as a Betwixt. Watch her sit in 6th place, 7th place, looking like she's lost. Then, as the camera pans around the final bend, watch her activate three skills at once and teleport to the front. That is the true Grass Wonder experience.
Common Mistakes to Avoid
- Low Power: I've said it three times, I'll say it again. Stop ignoring Power.
- Ignoring Intel: A low-intel Grass will wander into the back of another horse and stay there.
- Too Much Stamina: Don't build her like a Marathon runner for a 1600m race. It's wasted points that could have gone into Speed.
- Bad Support Friends: Using a "Runner" support card because it has high levels. The hints will be useless. Only use cards that give Sashi or General skills.
Actionable Steps for Your Next Run
To get the most out of this Uma Musume Grass Wonder Guide, follow these steps in your next training session:
- Check Inheritance: Ensure you have at least 6 stars of Stamina or Power from your parents.
- Focus Training: In the first year, bond with everyone. By the second year, you should only be clicking Speed, Power, or Intel.
- Target the Mile Cup: Use the early Mile races to farm skill points. She’s strong enough to win them even with mediocre stats.
- The Summer Grind: During the summer training camps, spam whatever stat is lowest. Usually, this is where you'll catch up on Power.
- Final Skills: Save your skill points until the very end of the training unless you're losing races. This gives you the best chance to get discounts from hints.
Grass Wonder isn't the easiest girl to train, but she is one of the most rewarding. When the meta shifts and everyone is running the same three characters, your "S-Rank" Grass will be the one stealing wins and making people wonder what just hit them. Stop treating her like a secondary character and start building her like the ace she is.
Go check your support library right now. If you have a decent Power card and a Speed lead, your next Grass Wonder run could be the one that finally breaks into the top tiers. Keep her calm, keep her focused, and let her loose on the final straight.