W for a 1/1 (So far, so good.) 2W for a 2/2 (Pearled Unicorn, but not horrible.) 10W for a 5/5 first strike creature (Wait, what?) 1U for a 0/3 (Eh, but bearable.) 3U for a 0/6 (Getting pretty bad here.) 11U for a 6/6 islandwalk creature (Wait, what?) B for a 1/1 (Muck Rats, but okay.) 4B for a 3/3 (Looking a little worse here.) 12B for a 5/5 creature with pseudo-fear (Wait, what?) Those ultimate mana costs were paid out over multiple turns, but if your creature died before hitting their highest level game over, tons of wasted mana, yikes
With a reasonable retreat cost and HP count, there are plenty of reasons to play M Gengar EX
Arm for Battle is a basic Boros Voltron shell that would likely end up putting Akiri, Line-Slinger and Bruse Tarl, Boorish Herder at the helm, while committing Wyleth, Soul of Steel to the 98
Power Hungry is a 100 card Commander preconstructed deck
It has good stats for its cost, provides minor, repeatable graveayrd hate, and even gives you cost reduction with the right set-up