The Ohka Ward can be found on any Sector map with an extremely low drop chance. It can be found in +1, +2 and +3 and increases your base EXP (but not GP) gained by 10%, 20% and 30% respectively

OhkaWard(+1) BOT type: Any Item type: Giga minibot Req. Level: 1

Deployed to assist the bravest Bots in their journey through Cyberspace with 10% Additional XP!

OhkaWard(+2) BOT type: Any Item type: Giga minibot Req. Level: 1

Deployed to assist the bravest Bots in their journey through Cyberspace with 20% Additional XP!

OhkaWard(+3) BOT type: Any Item type: Giga minibot Req. Level: 1

Deployed to assist the bravest Bots in their journey through Cyberspace with 30% Additional XP!