Last night's PAX Prime Magic party brought the greatest volume of Theros spoilers in the shortest time yet, and thus was the cause for much justified excitement, but a little earlier in PAX, a couple of powerful cards were spoiled to somewhat less fanfare. One of them is an Aura that simply won't stay dead - and won't let whatever it's enchanting do that either; and the other is a new version of Titania's Chosen that can simply wreck things in a monogreen deck. Here are Gift of Immortality and Reverent Hunter.
Gift of Immortality 2W
Enchantment - Aura (Rare)
When enchanted creature dies, return that card to the battlefield under its owner's control. Return Gift of Immortality to the battlefield attached to that creature at the beginning of the next end step.
How is this card awesome? Let me count the ways - it's one mana cheaper than Indestructibility; it protects from any form of death, not just destroy effects and lethal damage; and, yeah, it enables some sacrifice ability shenanigans, although thankfully it doesn't go infinite thanks to the delaying clause. That delay also gives your opponents a strategic "out" when dealing with this via graveyard exiling, triggered ability countering, or other types of effects. In other words, this is very strong, a great tool for Voltron-style EDH decks, but at the same time elegant and balanced. Definitely a great design.
Reverent Hunter 2G
Creature - Human Archer (Rare)
When Reverent Hunter enters the battlefield, put a number of +1/+1 counters on it equal to your devotion to green. (Each G in the mana costs of permanents you control counts toward your devotion to green.)
The Archer type and greenness implies that this is supposed to be someone from Setessa, but given the fact that he's apparently male and has "Reverent" in the name - like the Reverent Army of Meletis - this might be an implication that Meletis is actually green, white, and blue-aligned, meaning the poleis have tricolor associations, which would certainly be cool. In a not-unachievable scenario you could ramp this guy out on turn two by going turn one Forest, Elvish Mystic, turn two Forest, Burning-Tree Emissary, Reverent Hunter, giving you a board with a 1/1, 2/2, and 5/5 all ready to swing on turn three - not half bad. I'm not saying this guy is gonna be a neo-Tarmogoyf, but I think he may come close.