Grants unblockable when attacking, and its wall capabilities aren't bad, so once the board settles, it's a card that starts the process of throwing your ace into the fray
(Exile cards from the top of your library until you exile a nonland card with mana value 6 or less
The idea was the rest of the set was different enough from Innistrad that it was okay to have overlap with the graveyard
Grim Hireling just asks you to deal combat damage in exchange for making multiple treasures a turn cycle
But if you know of any better combos with Talrand, Sky Summoner, please leave me a comment
Commander players know that using ETB effects is always good in any color, and in white mana, it doesn't get any better than Elesh Norn, Mother of Machines.