Yidris's deck here is compelling as a strong addition to these decks, and that year of power additions to the game
Delve has been printed on creatures, instants, and sorceries so far, and we could see it on other permanent types in the future, but Teval, Arbiter of Virtue gives it to all your spells
Rakshasa Vizier Rakshasa Vizier is a very simple demon that grows when cards are exiled, nothing more, nothing less
And when you do manage to gang up and kill him, it's not like the Commander tax on a 3 mana leader is overly prohibitive to replaying Leo
It was the last time you had an amazingly aggressive first turn Dark Ritual combo until 2005, when it was resurrected in Ninth Edition, but by then Dark Ritual was in the past
It gives incredible inevitability to the deck, particularly against the slower more controlling lists