Top 7 Underrated Cards in Rush Royale You Should Start Using

When it comes to climbing the ladder or creating off-meta dominance in Rush Royale, most players stick to the tried-and-tested meta decks. But there’s a secret tier of gameplay potential hiding in plain sight—underrated cards.

In this deep-dive guide, we’ll spotlight the 7 best underrated cards in Rush Royale and how you can use them to form devastating Rush Royale secret strategies. These meta sleeper picks may not be the stars of every YouTube tier list, but they pack a punch when built around smart synergies.

Why Underrated Cards Matter

Many of these cards are overlooked due to low usage rates or steep learning curves. But in the hands of a strategic player, underrated cards can:

• Counter popular meta decks
• Provide unique win conditions
• Perform exceptionally in co-op or PvE
• Take opponents by surprise

Let’s break down these hidden gems and explore their ideal synergy pairings.

1. Sharpshooter – Boss-Killer Specialist

Why It’s Underrated:

Sharpshooter lacks splash damage, so it’s often benched. But don’t sleep on its high single-target damage. The higher its merge rank, the stronger its critical hits, especially against bosses.

Secret Strategy:

Sharpshooter excels when supported by debuff and utility units. It’s perfect for control decks where stalling gives it more time to take out priority targets.

Ideal Synergy:

• Chemist – Lowers enemies’ defense, making every Sharpshooter hit hit harder. Especially useful on tanky bosses.
• Hex – Adds a chance to instantly kill enemies next to a high-merge Sharpshooter, clearing waves efficiently.
• Vampire – Generates mana passively, allowing you to upgrade Sharpshooter early without sacrificing tempo.
• Portal Keeper – Helps you move your high-merge Sharpshooters into optimal positions.

2. Grindstone – The Overlooked Buffer

Why It’s Underrated:

Grindstone’s boost is positional, which turns off many players. But when placed right, it gives a massive bonus to adjacent units, increasing their attack damage.

Secret Strategy:

Grindstone works wonders with high-output, fast-firing units. Perfect for static DPS-focused setups.

Ideal Synergy:

• Engineer – Becomes more powerful in chains, and Grindstone boosts all connected Engineers nearby.
• Blade Dancer – A unit that thrives alone but benefits greatly from damage boosts near Grindstones.
• Knight Statue – Buffs attack speed and critical damage. When used with Grindstone, your DPS skyrockets.

3. Bombardier – Boss-Stopping Utility

Why It’s Underrated:

Support units rarely get love, but Bombardier’s stun effect is invaluable for boss phases, preventing dangerous abilities like Bedlam’s shuffle or Tribunal’s level-down.

Secret Strategy:

Include Bombardier in any deck focused on wave control or single-target takedown. Works particularly well in boss-heavy PvE setups.

Ideal Synergy:

• Inquisitor – High single-target damage that benefits greatly from Bombardier stuns to avoid interruptions.
• Thunderer – The more enemies stall, the more its chain lightning can tear through waves.
• Executioner – Finishes off enemies below 30% HP—perfect when Bombardier stalls them in place.

• Cold Mage – Pairs perfectly for a freeze + stun control combo.

4. Cold Mage – Wave Pacer

Why It’s Underrated:

Players favor pure DPS, but Cold Mage’s slow effect controls wave pace, giving you time to scale or recover. Essential in co-op and long wave survival.

Secret Strategy:

Use Cold Mage with late-scaling or precision units to give them more time to shine.

Ideal Synergy:

• Executioner – Cold Mage slows enemies down, allowing Executioner to land precise killing blows.
• Bombardier – Layered crowd control: slow + stun = full wave lockdown.
• Reaper – Synergizes well as it has a chance to instantly kill slowed enemies, especially in co-op.

5. Thrower – Poison AoE Sleeper

Why It’s Underrated:

Thrower’s poison damage is subtle, but deadly over time. It’s a damage-over-time (DoT) specialist that scales well when enemies pile up.

Secret Strategy:

Build around slows and control units to prolong poison exposure. In co-op, it thrives where wave management matters more than burst DPS.

Ideal Synergy:

Cold Mage – Keeps enemies slowed for longer poison uptime.

Bombardier – Locks enemies in place to maximize the poison damage duration.

Chemist – Weakens enemies’ defenses, making poison tick harder and faster.

6. Crystalmancer – Boss Shredder That Gets Better With Time

Why It’s Underrated:

Starts off slow but scales like a monster. Crystalmancer deals more damage the longer it targets the same enemy. Ideal for bosses with tons of HP.

Secret Strategy:

Give Crystalmancer time to build damage using stuns or slows. Strong in decks built for long-term scaling or high-boss-pressure modes.

Ideal Synergy:

• Cold Mage – Slows bosses, giving Crystalmancer more time to reach full damage output.
• Bombardier – Stuns lock the boss in place, letting Crystalmancer stack hits uninterrupted.
• Hex – Offers chance to instantly kill lower-HP enemies, so Crystalmancer can focus on priority targets.

7. Banner – Speed Booster Support

Why It’s Underrated:

Banner passively increases attack speed of adjacent units. It’s often ignored due to low direct impact, but in the right formation, it becomes a damage amplifier.

Secret Strategy:

Drop Banner near your strongest DPS cards to significantly increase their attack speed, especially in decks with high-merge synergy cards.

Ideal Synergy:

• Thunderer – The faster it hits, the more chain lightning you trigger. Banner supercharges this effect.
• Blade Dancer – Already powerful alone, but with increased speed from Banner, it becomes even deadlier.
• Engineer – When placed in chains near Banner, the damage-per-second output increases dramatically.

Break the Meta, Not the Game

The best underrated cards in Rush Royale can turn you into a dark horse player, catching opponents off guard and carving your own path to victory. Whether you're a free-to-play grinder or a meta explorer, these cards open new dimensions for strategy.