I have gotten very tired of seeing Razaketh, the foulblooded. Maintaining a few tokens is not difficult, and even maintaining several handfuls is trivial in this kind of format. The lack of mana cost on his ability means that even with no other mana sources, you can drop him ASAP and sculpt your hand for just a few life. This kind of card advantage feels very reminiscent of Griselbrand and Yawgmoth's Bargain. The life cost is steeper, but you also get to activate it less, since you are tutoring for exactly the cards you need, and don't have to worry about dead draws.
I'm curious to other people's thoughts and impressions though:
Is the creature sacrifice enough of a drawback to make it a reasonable ability?
Is his high cost enough to push him into 'safe' territory?
What are the general reactions when he drops?
How much value does he typically get? Does he win/end games?
I'm curious to other people's thoughts and impressions though:
Retired EDH - Tibor and Lumia | [PR]Nemata |Ramirez dePietro | [C]Edric | Riku | Jenara | Lazav | Heliod | Daxos | Roon | Kozilek