The closest card to a nonland gate is Omo, Queen of Vesuva, which can make nongate lands into gates
You could build a variant around magecraft creatures, combo people out with Twinscroll Shamans and combat tricks, or just play Maelstrom Muse into Creative Outburst and see if your opponent concedes, or wants to let you keep going
Clearly everything Landfall wants this card, big mana decks are happy to cast this at X = 4 just to start jamming ten-drops, and this card invariably warps future discussion over lands all entering the battlefield at once
Clerics have seen many powerful creatures with recent sets, especially from Voice of the Blessed, which gains +1/+1 counters and gains other keyword abilities the more life you gain
A 3-mana enchantment that doesnt impact the board has its weaknesses, but the reliable counter distribution outweighs them
While it certainly isnt the most exciting card, Alakazam EX Special Illustration Rare has a massive amount of charm, with its relative mundanity allowing it to stand out amongst the other Alternative Arts in the set