Ultimate Weapon in the Sun is a Hyper unique to the Attacker role in Co-op Mode. The player can substitute it for their character's Hyper card after reaching level 10 with the Attacker role.
Effect[ | ]
Upon use, the player receives the stock effect Ultimate Weapon in the Sun. While active, the player an additional 3 damage for each attack they make in their next battle.
Strategy[ | ]
Ultimate Weapon in the Sun provides its user with additional damage in battle. This card is best used by characters who have good stats for the Attacker role, but have a hyper card that does not aid them in combat or are too restrictive to use. An example would be . Unless a Supporter is reviving it regularly, it can be hard for to gain enough HP to use 
Turbo Charged. The player may prefer the fixed damage boost of Ultimate Weapon in the Sun.
This card is also good against bosses with high DEF, as it causes damage to be added to the player's attack after damage calculation, regardless of the bosses' DEF. This ensures that if an attack connects, the player will always do a minimum of 4 damage. If used in conjunction with 
Little War, it can allow the player to deal massive amounts of damage very quickly.
The downside to using this Hyper card is that it will replace a character's existing Hyper. Many characters that do well in the attacker role already have comparably strong Hyper cards that they may prefer over this one, such as 
Blazing! or 
Awakening of Talent.