Reign

Reign is a heavy Tier-5 assault unit designed as a slow but devastating base-buster. It fires a barrage of large, piercing bullets that can punch through most walls and deal massive building damage, making it a premier choice for breaking fortified positions in both campaign and custom attack maps. Reign occupies a large footprint and requires substantial resources and infrastructure to produce, so it is typically deployed as a decisive, late-game offensive tool rather than a massed frontline unit.

Reign’s primary weapon fires two shots at a rate of 3.33/sec (per barrel) and deals 80 damage with 10x pierce, plus area damage of 18 in roughly 1.6-tile radius; each shot spawns three frag bullets dealing 20 damage, 15 area damage (~1.2 tiles) and 3x pierce. The unit has very high raw health (notably tied for the highest raw health among units) and heavy armor — it holds the highest armor stat on Serpulo and ranks among the highest in the game — which makes low-damage and low-penetration defenses ineffective. Reign can drown, but it submerges far more slowly than most units.

Because its bullets pierce and ignore most thin defenses, the most reliable counters are long-range, high-damage surge-tier turrets such as the Foreshadow or defenses that apply status synergies. Reign is vulnerable to effects and combos that increase damage taken: Blasted combined with Freezing and Shocked combined with Wet both amplify incoming damage and can help overcome its heavy armor. Surge Alloy ammunition used by Swarmers or Cyclones is effective because the lightning sparks can strike Reign repeatedly; pairing Surge Alloy ammo with a Tsunami firing water (to trigger shocked status) further increases damage. Blast Compound ammunition with Cryofluid is an alternative if Surge Alloy is unavailable.

Reign is slow both in movement and rotation, which creates tactical windows to exploit. Its sluggish turning speed allows smaller, more maneuverable units (or the player’s Core unit) to kite or loop around it so it cannot target important structures; this can delay its firing and reduce overall damage to your base. Because of its slow pace, long-range static defenses with consistent DPS (for example, Sceptres, Megas, or other high-base-damage towers) can pick it off as it approaches. Sceptres provide strong base damage and innate lightning sparks but consume space that might otherwise house surge-tier turrets. Megas are useful for rapid repairs when walls are being chipped away by a prolonged Reign assault.

When fielding Reign offensively, pairing it with support units that exploit breaches (for example, Corvus) or using it to clear Plastanium Wall formations is particularly effective. Reign’s bullets outrange some artillery when manually controlled, so it can negate certain counter-artillery approaches. Its frag bullets can be used to thin out clustered defenses from a safer distance if micromanaged. The chief disadvantages are production cost, space requirements, and vulnerability to specialized long-range counters; compact schematics can mitigate production footprint but do not remove the resource expense.

Historical tuning notes: Reign was introduced as the Eradicator and later renamed; it has received multiple balance changes across updates including large health increases (from 9000 to 24000 in one major update), multiple weapon damage adjustments, range reduction (26 → 23 blocks in one update), speed conversions and increases (ultimately to about 3 tiles/second), armor increases, size increases (from 3.25×3.25 to 3.75×3.75), and inventory changes (capacity adjustments). A command limit once applied was removed.

Practical points:

• Prioritize surge-tier long-range turrets (Foreshadow) or status-synergy combos to defeat Reign reliably.
• Use the Core unit or mobile decoys to force Reign to waste turns and prevent it from firing at high-value structures.
• Combine Surge Alloy ammo carriers and water (Tsunami) to exploit shocked sparks for amplified damage.
• Produce Megas for fast repairs during prolonged breaches; be cautious of Reign’s ability to vaporize clustered repair units.
• As an attacker, pair Reign with other heavy units (such as Corvus) to exploit breaches and demolish core complexes.