Ossified Drone

 is a legendary  unit  with block. It produces gold each turn and can transform a Drone into another with its Ability.

Strategy
 is a one-supply legendary unit that gives the clickable Ability to convert ordinary Drones into additional s for the cost of one red. In doing so you gain an additional point of Health and the ability to block while still gaining gold as you do not need to click them (unlike base Drones that need to be harvested).

's low cost makes it easy to integrate early in your build, getting lesser Absorb and budget for Tech or an extra Drone. If you find yourself with leftover at the end of your turn, you can invest in the first one, and from that point on it will act as an efficient sink for any red that would otherwise be wasted.

The best use of is against threat that the opponent doesn't want to follow through on, such as Frostbite or Drake, as it will augment your defense while still producing gold each turn, much like Xeno Guardian and its attack. If you already own some your opponent will have to build a lot more threatened attack or chill before you have to actively defend against it, especially since you should continue to produce s each turn in this kind of game.

The soak Value of the Ability is considerable. Creating an Ossified Drone costs and a Drone, worth 3 early, for 2 soak next turn. It however, produces 1 back as well, making the top soak cost slightly over 2, which is very good. Using it this way implies an is held off from soaking for a constant click, so the 1st one basically is paying for its own cost.

Another situation is the one described by Will Ma. If you have Rhinos, you want them to attack before dying and you can let them do so if you have to make it up for your defense.

As is a legendary unit that can only be purchased once, you never want to lose the last  you have on the field if you plan to convert more base Drones in the future.

You should also be careful about using together with other units consuming Drones, as you could end up reducing your base Drone count faster than you'd want.

Openings
Player 1


 * DD
 * DD
 * 1) DDA
 * 2) TDD +
 * 3) TTB
 * 4) RWDE click

Player 2 Rush

This provides 2 Attack early and allows defending in low tech.
 * A
 * TT
 * 1) T +
 * 2) TD +click
 * TT

Player 1 early Rush response: This adds great Defense but is somewhat slow for Attack. Forces a Drone hold at Turn 5.
 * DD
 * A
 * 1) TD +
 * 2) TTE
 * 3) RE click

Player 1 Rush with Shadowfang and Vivid Drone (1):


 * DD
 * A1
 * 1) A +
 * 2) Shadowfang +1 +click
 * 3) Shadowfang +1 +click

This provides 2 Attack early and allows defending in low tech.

Change log

 * February 15th, 2015
 * Cost changed from 5 to 2 + sacrifice a Drone.
 * December 17th, 2014
 * Cost decreased from 6 to 5.
 * October 11th, 2014
 * Cost changed from 6 to 6.
 * October 4th, 2014
 * Added.