3 - Sephiroth, Fabled SOLDIER An antagonist just as iconic as his protagonist counterpart, Sephiroths card art by the legendary Tetsuya Nomura is likely to make him incredibly popular
One Piece TCG Purple Deck Guide: DON Ramp and Control: Full breakdown of Purple's DON ramp strategy and top leaders
Things such as Broadside Bombardiers, Goblin Welder, and Goblin Engineer all give you ways to get rid of this card while the ability is on the stack so that you can use it to discard two, draw three (which is pretty reasonable rate especially in decks that have Welder/Engineer putting things into the graveyard for later) and not be forced to leverage that same ability to your opponent since it won't be in play when the ability resolves
At the end of the day, theres a good chance Emrakul doesnt make the cut if players deem that it requires too much work
Once a historic creature you control attacks, it will keep the +2/+2 for the entire turn, even if it stops being historic later that turn
the list goes on and on