Reaction Spell - Discard
Jun 06, 2018 PDT
In Astrea/Koji-metagame :
If you use Hypnotize on a Unit it gains Bypass.
The FAQ states that you can use Choke to cancel the effect of Bypass.
Sadly the FAQ states that modifying an ability of a card is a special case of affecting the card, so Holyknight with Bypass can not be choked, as the Impenetrable ability prevents Spells from affecting the Holyknight.
An Elefantrider with Bypass however can be choked as he has no such protection.