"If you hit someone while boosting, you'll grab them! Click again to release."
The Orca is a black and white "mammal" in deeeep.io. It is a 10th tier animal and equivalent to the Shark , the Whale , the Cachalot , the Giant Squid , the Polar Bear , the Whale Shark and the Marlin. It evolves from the Dolphin.
As a Orca Edit
Killer Whale has ability to grab animals Seagull and above. You can boost above the water to try and catch a Seagull to suffocate it. Bring animals you grab to the floor, it'll be harder for them to escape if they get free.
You can also grab Sharks. They will lose all of their oxygen immediately and slowly lose health until they die.
Against a Orca Edit
Do not approach an Orca unless you are a Whale (pull the Orca in, you have more health), Cachalot (slow the Orca and attack, you have more health), Polar Bear (throw snowballs to do enough damage), Giant Squid (grab and drag into Deep), , Whale Shark (attack with Remoras) or bald eagle (grab then drop in the swamp).
If you feel like testing your luck/skill as a Giant Squid, launch yourself at it, and drag it into the depths. Be wary, though, as it can hold you at the surface, and make you lose pressure damage.
If you are not a top tier animal or are a Sunfish, Stonefish, Marlin, or Shark, stay away. Sunfish, Stonefish, and Marlins have less health and Sharks will lose all their oxygen immediately if they are grabbed by an Orca.