MagicArena Wiki
Name Mesmerizing Benthid
Mana Cost BlueBlue
Converted Mana Cost 5
Types Creature — Octopus
Text When Mesmerizing Benthid enters the battlefield, create two 0/2 blue Illusion creature tokens with "Whenever this creature blocks a creature, that creature doesn't untap during its controller's next untap step."

Mesmerizing Benthid has hexproof as long as you control an Illusion.

P/T (4/5)
Expansion Ravnica Allegiance
Rarity Mythic Rare

Card rulings (?)
2019-01-25 Mesmerizing Benthid has hexproof as long as you control any Illusion, not just Illusion tokens like the ones created by its first ability.
2019-01-25 The triggered ability of the Illusion tokens doesn’t tap the attacking creature if it’s untapped, most likely because it has vigilance.