Sire rules, run him ASAP. forget this mana rock bs and just reanimate him t2-4, though (also support flashback across all colours, plus activated abilities and the top-end goes down a lil
warkite is, to be a little glib, fine, but how many gold slots do you actually have
thoctar's power is for sure there (iirc ahada tested cheaper versions that were numbingly strong) but imo it's a function of the x/1 and x/2 density of your cube more than removal density or attrition gameplay
Yes you should 100 percent run Rakdos' Return, oh my god that card is so fun and ends up cool places. More interesting in the midgame when both players are making tough choices than early or late, but the variability and flood insurance are still there