To get the Cosmi-Rod (officially named the Universal Weapon) in Blg42598's Roblox game Infinity Gauntlet | Thanos Simulator, you must access the Catacombs and land the killing blow on the rare boss enemy known as the Servant of Celestial [Rare]. Defeating this enemy grants the Universal Weapon badge and immediately places the weapon in your inventory.
Prerequisites to Enter the Catacombs
Before you can hunt for the Cosmi-Rod, you must unlock access to the Catacombs realm.
- Stormbreaker Badge Requirement: Accessing the Catacombs portal requires having unlocked the Stormbreaker badge.
- Portal Location: The entrance to the Catacombs is situated directly across from the Forge on the main baseplate map.
- Inventory Check: If you enter the Catacombs without Stormbreaker or the Infinity Gauntlet equipped in your loadout, the game automatically adds them to your inventory upon entry.
Near the Catacombs entrance, you will find the Templar shop (offering 100 Fragments for kills) and the Celestial Forge, where players can purchase the Upgraded Stormbreaker (75,000 kills) or the Upgraded Infinity Gauntlet (200,000 kills).
How to Spawn the Servant of Celestial [Rare]
The Servant of Celestial [Rare] is a boss that spawns inside the volcanic Catacombs map. It replaces regular mob spawns on a progressive probability system.
- Spawn Areas: The Catacombs consist of an Upper Level (where Level 1 Servants spawn) and a Lower Level (where Level 2 Servants spawn). The Rare variant can spawn in either area.
- Base Odds and Scaling: The rare celestial starts with a 0/3,333 (approximately 0.03%) base spawn chance. Every time a regular Servant of Celestial [Lvl 1] or [Lvl 2] spawns, +3 is added to the numerator for that area's pool.
- Triggering Spawns: Groups of 10 standard Servants spawn at a time. The game requires players to clear out at least 50% of the active mob group before the next wave spawns. Farming these regular mobs steadily increases the spawn probability.
- Spawn Reset: Once the Servant of Celestial [Rare] appears, the spawn odds for that respective section reset back to 0/3,333. Multiple rare celestials can theoretically exist at once across the upper and lower sections if not killed.
Boss Characteristics and Combat Strategy
The rare boss differs significantly in appearance and power compared to regular Catacombs minions.
Enemy Identification
- Servant of Celestial [Lvl 1]: Yellow-orange reflective body, 3 eyes, 6,000 HP, deals 1,250 melee damage.
- Servant of Celestial [Lvl 2]: Yellow-orange reflective body, 4 eyes, 8,000 HP, deals 2,500 melee damage (or shotgun bursts dealing 2,500 projectile damage per shot).
- Servant of Celestial [Rare]: Purple reflective body, 6 eyes, 1,100,000 (1.1 million) HP. He wields the purple-glowing Cosmi-Rod powered by the Power Stone.
Combat Mechanics to Keep in Mind
- No Despawn Mechanic: If the Servant of Celestial [Rare] spawns and kills you, the boss does not despawn. You can re-enter the Catacombs and continue fighting him until he is defeated.
- High Melee Damage: The rare celestial's hammer smash deals massive damage (160,325 damage per hit in updated versions). Keeping your distance with ranged abilities is crucial to avoid being eliminated instantly.
- Environmental Lava: The surrounding lava deals a flat 10,000 damage to players. Getting pushed or knocked into the lava by servants can be lethal, though using shield abilities can block the lava damage.
- Recommended Equipment: Upgrading the Infinity Gauntlet at the Celestial Forge for 200,000 kills grants powerful meteor abilities that deal massive area damage, making both mob clearing and boss fights significantly safer. Upgraded Stormbreaker and high-tier gear also help manage incoming damage.
- Kill Credit: The player who lands the final killing blow on the Servant of Celestial [Rare] receives the Universal Weapon.
Universal Weapon (Cosmi-Rod) Stats and Abilities
Once obtained, the Cosmi-Rod functions as a ranged warhammer that fires energy shockwaves. Equipping the weapon also provides a substantial passive health boost to your character.
| Attack / Variant | Input | Effect Description | Base Damage | Cooldown |
|---|---|---|---|---|
| Concussive Blast (Standard) | Left-Click | Fires an expanding translucent energy shockwave straight ahead. | 105 | 2 seconds |
| Concussive Blast (Power Stone DLC) | Left-Click | Adds a purple glow, doubles the range and vertical hitbox, and applies a 5x damage multiplier. | 525 | 2 seconds |
Additionally, the Cosmi-Rod is capable of eliminating Scepter NPCs with its attacks. Players can also obtain cosmetic skins for the weapon (Gold Brick, Obsidian, Adamantite, and Equinox) by opening game cases.
Frequently Asked Questions
Can beginners defeat the Servant of Celestial [Rare]?
Yes. Because the boss does not despawn when you die, newer players can chip away at the boss's 1.1 million health over multiple lives, provided they have unlocked the Catacombs entrance via Stormbreaker.
Does the Cosmi-Rod require a Gamepass to unlock?
No. The base weapon is earned entirely in-game by defeating the rare boss. However, owning the Power Stone gamepass modifies its primary attack, turning the blast purple and increasing damage from 105 to 525.
What is the badge associated with this weapon?
Defeating the boss and collecting the weapon awards the Universal Weapon badge in your Roblox profile.
