I've drafted with some of the cards a few times now. Aether Searcher was bad beats two of the three times it was drafted (nothing 'good' in the next pack) so it's likely coming out. Selvala users were very hesitant to ever use her, no one wanted their opponent to draw cards. Brago and Grenzo were great. Librarian was actually great as a drafting tool- Deal Broker was real cheaty since we were team drafting, but the opposing team at least got to see the swap. Likely coming out since team draft is the favored draft style in these parts.
I'm not gonna lie, I didn't read predator's howl. Looks pretty great.
wtf are you guys on? predator's howl is awful, triggering those cards is not easy and 3 2/2's for 4 isn't even that great in cube
selvala is way sweeter than she looks since she finds stuff to do with the mana (simic bon mot) and the lifegain is also great. anyone remember pristine talisman? you guys have got to give her another whirl. that and aether searcher too. (in general cubes here need a light sprinkling of extra fatties, everyone loves finishers)
magister of worth is kinda cool but i'd rather spend a 6-mana-wrath slot on a single-color card.
Sunblast Angel for example more interesting to set up. or
Planar Cleansing and
Austere Command do something different than "wrath and make a dude"
i did not get to activate Grenzo but the card still seems awesome and the 2-CMC is interesting for pod