To unlock the Grimwing MK II Behemoth skin in State of Survival, you must collect 100 skin fragments. Activating the skin at 1-Star grants permanent passive combat bonuses of +5% Troop Attack and +5% Troop Defense. Because Behemoth skin "owned" bonuses stack additively and remain active across all settlement defenses, field marches, and rallies, you gain these attributes permanently even if another skin is visually equipped.

Star Ranks and Stat Scaling

Once unlocked in the Behemoth Institute, Grimwing MK II can be upgraded across five star ranks using additional fragments. Upgrades increase your baseline attack and defense while introducing Troop Lethality and Troop Health.

Star RankFragment RequirementPrimary Stat BuffsAccount Impact
1-Star (Unlock)100 FragmentsTroop Attack +5%, Troop Defense +5%Permanent baseline owned bonus across all marches
2-Star120 FragmentsTroop Attack +8%, Troop Defense +8%Low-cost stepping stone for moderate spenders
3-Star180 FragmentsTroop Attack +12%, Troop Lethality +6%Noticeable PvP offensive boost for cross-state combat
4-Star240 FragmentsTroop Defense +16%, Troop Health +8%Defensive reinforcement for settlement garrisons
5-Star (Max)300+ FragmentsPeak Troop Attack, Defense, and Rally StatsHigh-investment ceiling intended for primary rally leads

Fragment Sources and Acquisition Costs

Grimwing MK II is an established, legacy Behemoth skin that rotates through older event reward pools and cash bundles rather than headline patch events.

  • Behemoth Skin Exchange Store: Free-to-play and low-spending players can acquire fragments by trading universal skin vouchers and event tokens during state festivals. This allows you to accumulate the 100 fragments needed for unlock without spending money.
  • Rotating Daily Bundles: Paying players can buy themed Behemoth Development packs. These start at $4.99 and scale sequentially through $9.99, $19.99, $49.99, and $99.99. The $4.99 and $9.99 daily reset packs offer the highest fragment yield per dollar spent.
  • Direct Event Unlocks: Buying through full pack chains in a single event run generally costs between $100 and $150, depending on randomized drop crate rates.

Investment Strategy and Upgrading Advice

Because newer Behemoth skins offer higher stat multipliers and greater rally capacities for equivalent currency, you should treat Grimwing MK II as a broad collection unlock rather than a vertical star-level priority.

  • Free-to-Play and Low Spenders: Save universal skin vouchers until you have the exact 100 fragments required for the 1-Star unlock. Stop investing immediately after unlocking it to keep your vouchers for other skins.
  • Mid-Tier Spenders: Target the 1-Star unlock or stop at 2-Star by purchasing only the discounted $4.99 and $9.99 daily packs. Avoid buying $49.99 or $99.99 bundles for this skin, as those funds yield better combat returns when directed to modern Behemoth chassis or chief gear.
  • Rally Leaders: Unlock the skin to collect its cumulative owned stats. Upgrading past 3-Star or pushing to 5-Star is only worthwhile if your newer-generation Behemoth skins are already maxed and your alliance requires marginal rally lethality for Capital Clash and State Warfare.
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Michael Smith

Michael Smith

Michael covers live-service games, events, reward systems, and efficient daily routines, turning frequent updates into clear actions for players.