Units with the Deadly skill are shown with a green skull in the icon slot. They also have an animation of a rather unpleasant looking green ooze dripping from the unit's damage value.
What Does Deadly Do?
If a unit with Deadly enters combat with any other unit then if it causes damage the other unit dies and is sent to the Void. So in effect a Deadly unit kills any other unit it fights against unless that unit has a way to avoid damage. Even a puny 1/1 Deadly unit such as a Direfang Spider can bring down a colossus like Frontline Cyclops in one round.
Note that an Aegis does not protect against the effect of a Deadly opponent.
Deadly does not work on the enemy character, if it did it would be ridiculously overpowered. However the Shadow faction has a Legendary Relic Weapon which makes your attacks deadly to the other player character - ouch!
The best way to deal with Deadly units is with a spell. Try not to fight them, at least not with a card you want to keep. You're usually better off letting them get through until you can put out a low value blocker that you can afford to lose whilst killing the Deadly off.
From the other side, playing a Deadly card is a very powerful threat. If it has a low attack value then you're probably better off not attacking with it. Keep it in reserve as a threat; your opponent will think twice about attacking with valuable units if you have a Deadly that can block and kill them.
Last updated: 14-07-2017
This page written for Eternal version 1.15, Card Set 1