Lethal is the fifth basic keyword in TES:Legends. When the creature with keyword Lethal deals damage to opponent’s creature, opponent’s creature will die regardless of how many health it has. An exception is the situation when opponents creature has keyword Ward. In this situation it will lose the Ward but not die. There are not so many cards with keyword Lethal in the game.
Keyword Lethal is good enough to control the situation on the board but because of the small number of creatures we cannot see many creatures with this keyword in Control decks.
In Aggro decks we don’t need creatures with keyword Lethal even to pass from opponents Guards.
On Arena this effect is good enough and sometimes it will be perfect to get this keyword from