As Born of the Gods will have five different Hero's Path packs to choose from at the prerelease just as Theros did, there will naturally be five, immediately playable, different promo cards - and MTGSalvation user DARKING managed to take some pictures of the BNG prerelease poster at his local game store in Mexico, confirming that the five promos will be fat, splashy creatures once again this time around. Since the names are in translation, none of them have been confirmed yet, but we nevertheless know the full text of each of these.
Silent Sentinel 5WW
Creature - Archon (Rare)
Whenever Silent Sentinel attacks, you may return target enchantment card from your graveyard to the battlefield.
It serves a higher justice than the whims of the gods.
This was theoretically designed, it seems, as a card for "Paladin Timmy" - the player who wants to feel righteous - but ultimately it's Johnny who will turn this into game wins. I can see an esoteric reanimator deck that turns Silent Sentinel into reviving an Omniscience. My personal favorite of the bunch, and I know I wanna pick white this time around.
Mediator of the Ideal 4UU
Creature - Sphinx (Rare)
Inspiration - Whenever Mediator of the Ideal becomes untapped, reveal the top card of your library. If it's an artifact, creature, or land card, you may put it onto the battlefield with a manifestation counter on it. It's an enchantment in addition to its other types.
Inspiration appears to be a keyworded version of the Lorwyn and Morningtide Merfolk untap trigger - and will likely be used most in white and blue once again. This is rather similar to the white prerelease promo, but with a delayed, and more open-ended, trigger after it swings. The Mediator's actual triggered ability has the potential to either do not much of anything or to swing games after one untap, a fitting addition to the long tradition of things like Show and Tell in blue. Of course, when you have scry effects, like are prevalent in this block but especially in blue, it's much easier to get what you want out of this...
Devourer of Hope 5BB
Creature - Demon (Rare)
B, Sacrifice another creature: Regenerate Devourer of Hope.
2B, Sacrifice two other creatures: Destroy target creature.
The gods can be appeased, but the demons cannot...
This probably compares very unfavorably to Visara the Dreadful, but then again, Visara is a very strong card. The existence of Devourer of Hope at least makes suicide black possible to play at the prerelease, and prerelease table flips are the most amusing kind.
Firestoker Dragon 4RR
Creature - Dragon (Rare)
1R: Firestoker Dragon deals 1 damage to target creature. That creature can't block this combat. Activate this ability only if Firestoker Dragon is attacking.
The Akroans adorn their coffins to honor the dragons, not to protect from them; for that they would provide little help.
Mmmm, that's the smell of repeatable activated burn in the morning. Ancient Hellkite is, of course, not a spectacular card, but perhaps it'll do a few things in Theros block Limited. Don't underestimate the ability of something like this to get alpha strikes through.
Nessian Wildripper 4GG
Creature - Hydra (Rare)
Tribute 6 (As this creature enters the battlefield, an opponent of your choice may put six +1/+1 counters on it.)
When Nessian Wildripper enters the battlefield, if its tribute wasn't paid, you may have Nessian Wildripper fight another target creature.
Tribute is apparently the keyword for monsters that is replacing, well, monstrosity - the two seem to have similar functions at first blush, but in reality tribute is just an extension of the old "punisher" cards. It's a way to undercost crazy effects by giving your opponent the semblance of choice between two terrible options - a delicious conundrum. This particular Hydra looks to be the most playable out of all the prerelease promos, given that it's always a fatty and is either creature removal or stupidly undercosted bulk.