|Description||Win a Rated game with 1 health remaining.|
|Orb Points||500||Orb Coins||5|
An easy way to get this is to bring a full spellbook, but wait until you get exactly 21, 41, 61, 81, or 101 health points before using it. Once you have reached that level, use the familiar to get exactly 1 health point, then kill your opponent. Good choices for the familiar are the Seahorse and Frost Sprite familiars, as often people will only use the first level. This means you don't waste your familiar, waiting for the proper moment. However, it will not work from 101 health in this case.
You can do a similar technique from 26, 46, 86, or 106 hitpoints if you stun yourself with Blast from the Past first, as in this case you can still play. With 36, 56, 76, 96, or 116, you can walk into an aura of decay (also not ending your turn). By combining the two, you can add the additional ability for reach 1 health point from 121 (or 101 if you have already used one level, as with the seahorse or sprite).If you play a rated team game and one of your teammates lives with one hp and you win you still get the achievement. The name is a reference to the Black Knight from Monty Python and the Holy Grail.
NOTE: This achievement will also be achieved if you win a team game with at least 1 member of your team with only 1hp. Also, will not work if you last hit with Drain Bolt.