Black Widow

'' ' Enables forward thrusts that are lethally precise. ' ''

The Black Widow is a variant of Nekro that is unlocked by reaching round ten in the Bear Cave. It has one charge, fully heals and its berserk effect grants the player the ability to kill by evading. Hitting an enemy with an evasion kills them instantly, but it will only kill the first enemy that the player hits; other enemies will be knocked over.

Strategy
The Black Widow has an extremely powerful effect of being able to instantly kill enemies in berserk while simultaneously evading, by using evade. Although it can only kill one enemy at a time, which makes this mainly useful for killing tough enemies or for just using at the same time as dodging an attack. Spamming the dodge is effective when facing very tough enemies, but is less efficient for large groups of weak enemies, where standard attacks can hit them all at once, so it is important to not be tunnel visioned on its special effect.

On top of that, its healing is actually good, healing fully for the entire syringe. Despite this, it does have its downsides.

The most obvious downside is its single charge. Despite the healing output being good, it is only good when used on very low health, otherwise it is wasted, which makes topping up health between rounds hard to do efficiently. More importantly, it has the most expensive berserk in the game, technically shared with Greyhound, but without the increased draw speed, making it worse in practice. This means that effective use of its effect is imperative to justify using berserk, therefore its best saved for when the more elite enemies show up, a good use is for dealing with gun wielders, as it allows you to safely take them out instantly. Another downside is that enemies killed with the special won't convulse, but you still have the option to use normal berserk attacks, so it isn't as extreme as with the White Russian for example.

This drug is even better with allies. The best combination is actually any drug that allows for smaller quantities of healing, such as Kremlin Colonel or Blue Lagoon, but even two-charge healers are fine, since bit healing can be saved for this drug, while smaller increments can be done with the other. White Russian, Kremlin Colonel and Bloody Mary are probably the best combinations, since this drug is most effective against small numbers of tough enemies, while those three are best against larger groups of weaker ones, as well as being able to deliver incremental healing.

Trivia

 * The Black Widow is a cocktail consisting of black vodka (blavod) and cranberry juice. The vodka is poured on top of the cranberry juice and not mixed to create two colours of black and red in the glass, much like its namesake which is a black and red spider.