Actually, on the contrary CLOAK brings Enigma (a unique way to produce anonymous transactions) to the table; where DeepOnion is nothing new (just crypto via Tor, something any coin can do). I'm not even going to attempt to explain how Enigma works (math is not my strong point), but you could read CLOAK's whitepaper https://www.cloakcoin.com/resources/CloakCoin_ENIGMA_Whitepaper_v1.0.pdf if you wanted to learn more.