You can only use each effect of "Horus the Black Flame Deity" once per turn
That said, considering it has to be against a creature and not simply target, means you wont be getting the benefit from hitting players themselves, or opponents can simply choose not to block with one of their creatures and that means no counters, but with spells like Duel for Dominance or Ents Fury that forces Wolverine to attack an opponents creature or enchantments like Fire Whip can mitigate this restriction pretty easily
May encourage cheating: "If I hadn't drawn the I wouldn't have been defeated, so let's ignore it!" Deckbuilding Tips: Pairs well with Arcane Research and Down the Rabbit Hole - synergising by offering more XP
Rose's last ability triggers when you sacrifice a Junk for any reason, not just to activate a Junk's activated ability
After youve found your local Pokmon League and played at locals, whats next
Generally, Commander players have to wait until the end of the spoiler season to start seeing the goodies meant for their favorite format