Mechanic War is a popular Idle RPG where you need to create your perfect squad of Mechanics to fight against endless swarms of robots. With over 60 units across various rarities and roles, such as tanks and assassins to snipers, knowing who to pull for gives you a major edge in-game. So, to help you create the best roster, this Mechanic War Idle RPG tier list helps you pick the Mechanics that are the most powerful and worth investing your hard-earned resources into.
Mechanic War Idle RPG Tier List - All Mechanics Ranked

| Tier | Mechanics |
|---|---|
| S | Green Beret, Fire Deliver, Commando, P.Zero, Yellow Dagger, Blood Samurai |
| A | Red Heart, Blue Bird, Lord Commander, Punch.G, Defender, Fast Pointer, Battle Duo, Red Pierrot |
| B | Holy Spear, Purple Rain, P.Zero-One, War Machine, Black Pierrot, Blue Spirit, Battle Bear, Flash Arrow, Black Vulcan |
| C | Black Wukong, Dagger Holder, Black Bear, Green Robin, Guerilla Vulcan, Golden Wukong, Sword Master |
The above tier list gives a complete overview of the top 30 Mechanics in Mechanic War Idle RPG. The Mechanics not included in the tier list belong to Rare and other lower rarities, and are not worth investing in. The S-tier Mechanics in the above tier list are the best of the bunch, with the best skills for their roles, whereas the C-tier Mechanics should always be your last picks. Below, we've gone into details regarding each Mechanic and their Pros & Cons.
S Tier Mechanics - Best Units in Mechanic War Idle RPG
| Mechanic | Rarity | Pros & Cons |
|---|---|---|
| Green Beret | Legendary | + Exceptional HP scaling + Absorbs front-line damage + Reduces enemy crit rate + Best Tank Mechanic in the game |
| Fire Deliver | Legendary | + Long-range and one of the highest DPS + Has consistent high burst from bow attacks + Very high base crit chance + Ideal for clearing Boss stages |
| Commando | Legendary | + Best sniper with high accuracy stat + Deals increased damage to low-HP enemies + Ignores defense + Can self-buff as well as deal AoE damage |
| P.Zero | Legendary | + Fast melee fighter with high ATK SPD + Has strong Burst skills and self-buff + Can create critical chain attacks + Overall very balanced stats between HP and DPS |
| Yellow Dagger | Legendary | + High DPS dagger assassin + One of the best burst single-target Mechanics + Great for stacking + Strong against any Ranged Mechanic |
| Blood Samurai | Legendary | + Katana assassin with AoE damage + Can self-buff ATK stats as well as lifesteal + Continuously scales stats during fights + Best at dealing with grouped enemies |
A Tier Mechanics
| Mechanic | Rarity | Pros & Cons |
|---|---|---|
| Red Heart | Legendary | + Durable frontline with higher DPS + Deals bonus damage when below 50% HP + Decent in both PvE and PvP |
| Blue Bird | Legendary | + Mid-range bow DPS + Very high attack speed stat and decent evasion + Works great in Frontline-heavy teams |
| Lord Commander | Legendary | + Sniper with strong crit scaling + Slows enemies on hit + Can deal AoE Debuffs on skill activation |
| Punch.G | Legendary | + Melee fighter with high attack speed + Can inflict strong AoE cleave + Decent chance to trigger self healing |
| Defender | Ancient | + Solid pure tank Mechaic + Has massive HP scaling + Weak damage output, but makes a great tank |
| Fast Pointer | Ancient | + High-range bow DPS Mechanic + Great for wave clearing + High attack speed but low durability |
| Battle Duo | Ancient | + Ranged sniper duo with both burst and AoE + Can target backline enemies directly + Deals extra damage to buffs |
| Red Pierrot | Ancient | + Melee damage with decent survivability + Can inflict moderate debuffs + Consistent across most stages |
B Tier Mechanics
| Mechanic | Rarity | Pros & Cons |
|---|---|---|
| Holy Spear | Ancient | + Dagger assassin with decent burst + Good early damage - Falls off in the late game |
| Purple Rain | Ancient | + Decent Tank with DoT skills + Reliable in wave clearing - Low survivability, especially against bosses |
| P.Zero-One | Ancient | + Poison AoE with ranged bow + Debuffs enemies over time - Weak base stats and poor scaling |
| War Machine | Ancient | + Self buff and slows enemy ATK speed + Utility debuff kit - Low overall DPS from skills |
| Black Pierrot | Ancient | + Melee debuffer with passive ATK debuff + Can reduce burst damage - Not suitable as primary DPS |
| Blue Spirit | Ancient | + Katana assassin with AoE damage + Self buffs speed and ATK - Lacks burst Damage of any kind |
| Battle Bear | Hero | + Durable beginner tank + Low-cost investment - Outclassed by Legendary tanks overall |
| Flash Arrow | Hero | + Decent DPS with range + Works well in the early game - No utility or survivability at all |
| Black Vulcan | Hero | + Sniper with moderate burst + Fast skill cycling - Lacks penetration or armor ignore |
C Tier Mechanics - Worst Mechanics in Mechanic War
| Mechanic | Ancient | Pros & Cons |
|---|---|---|
| Black Wukong | Hero | + AoE melee attacker and inflicts Evasion debuff - Poor scaling and low damage - Debuff effects are negligible |
| Dagger Holder | Hero | + Fast dagger assassin with Single-target burst - Lacks Evasion and durability - Skills have almost no effect |
| Black Bear | Hero | + Tank with minor DPS - Doesn't scale past early levels - Base Stats are very low |
| Green Robin | Hero | + Decent Ranged DPS - No defining trait or synergy - Outclassed by all higher-rarity archers |
| Guerilla Vulcan | Hero | + AoE Sniper with okay Damage - Weak overall DPS output - Not viable in later stages |
| Golden Wukong | Hero | + 3-target AoE DPS with decent stats - Lackluster Evasion buff - Lacks burst DPS to clear waves |
| Sword Master | Hero | + Passive buff to ATK, - Chance of AoE is negligible - Unreliable DPS and underperforms against grouped enemies |
How to Reroll in Mechanic War Idle RPG

You can try rerolling in Mechanic War Idle RPG if you want a strong early game advantage. The best Mechanics, especially in the S tier, can improve your progression speed across every game mode. So, here’s how you can reroll easily:
- Go to the Battle Interface, open the menu at the top right, and select Settings.
- In Settings, tap on Delete Account. Confirm by selecting ‘Yes’ when prompted to check the server connection.
- Your account will be instantly deleted (if unbound).
- Restart the game and complete the short tutorial (around 5 minutes).
- Claim all free Diamonds from gifts and coupon codes. Use your Diamonds in the Recruit section to summon Mechanics.
- If you get your desired units (like Fire Deliver or Commando), bind your account in Settings.
- If not, delete your account again and repeat the process.
Once you pull one or more S-tier Mechanics, you’ll have a far smoother time clearing stages and finishing events. Feel free to reroll a few times since it pays off quickly in this game.
Frequently Asked Questions (FAQs)
Subjectively, Commandio and Fire Deliver are two of the best units due to their scaling and synergy with most team comps. Blood Samurai and Yellow Dagger also shine in DPS ineups.
Not necessarily. If you're running high DPS or Burst snipers, you can sometimes get away with no tank. But for Boss fights and late game, having at least one tank like Green Beret or Red Heart helps a lot.
Only early on. Most Hero-tier units fall off fast, and you should replace them when you unlock Ancient or Legendary Mechanics. They’re mainly filler for the early stages.
For more Game Tier Lists, check out Zerowake GATES: BL RPG Tier List or Jujutsu: Soulbound Tier List & Reroll Guide on Pro Game Guides!