Remember when, as Nathaniel Cho you had to run one copy of Handcuffs to just disable Tommy Malloy for good?
Well, now for the cost of only 2 damage, a resource and this card, you can basically take Nathaniel's personal weakness out of rotation for good
This is a fantastic event: against humanoids they are good as basically dead if locked down with Restrained, if not even deader as much as someone hit with Bury Them Deep because they cannot respawn. As long as they don't get or produce Doom, you don't need to put them down.
Even against non-humanoids this is great, because the card only gets discarded after cards ready in the upkeep phase, which means it works as a longer stun like Slip Away and Disguise without a test. This is incredible tech and insurance against retaliate enemies just like Adapt and Overcome: if you trigger the counter-attack, you can ensure the enemy won't get a chance to strike you again if you fail your follow up attacks.
Very good card: so happy Guardians got great tools in Chapter 2.