In the battle between Absorb and other three-mana counters Absorb would almost always win out if it was easily castable, and it was even a small incentive to choose white over black as a secondary color
Twisted Sewer-Witch gifts you a Rat token when it enters the battlefield, but it then provides every Rat you control with a Wicked Role token
The most obvious way is to simply remove the counters from them, but the options are limited
Even lifegain decks that dont plan to storm off can use it to generate a huge burst of lifegain for relatively little mana
The One Ring on turn one isnt just possible, its comparatively easy, and if it resolves then chances are the game is yours
Dark Apostle is a fun card, hammering home the Chaos theme, while Kharn shows off his namesake by going around the table so that he can hit more stuff