Ixalan

Arcane Adaptation | Enchantment | | As Arcane Adaptation enters the battlefield, choose a creature type. Creatures you control are the chosen type in addition to their other types. The same is true for creature spells you control and creature cards you own that aren't on the battlefield. | Mark Behm

Deeproot Waters | Enchantment | | Whenever you cast a Merfolk spell, create a 1/1 blue Merfolk creature token with hexproof. (A creature with hexproof can't be the target of spells or abilities your opponents control.) | Zezhou Chen

Favorable Winds | Enchantment | | Creatures you control with flying get +1/+1. | Shreya Shetty

Navigator's Ruin | Enchantment | | Raid — At the beginning of your end step, if you attacked this turn, target opponent mills four cards. | Zoltan Boros

One With the Wind | Enchantment | Aura | Enchant creature Enchanted creature gets +2/+2 and has flying. | Naomi Baker

Search for Azcanta // Azcanta, the Sunken Ruin | Legendary Enchantment // Legendary Land | | At the beginning of your upkeep, surveil 1. Then if you have seven or more cards in your graveyard, you may transform Search for Azcanta. (Look at the top card of your library. You may put that card into your graveyard.) // (Transforms from Search for Azcanta.) {T}: Add {U}. {2}{U}, {T}: Look at the top four cards of your library. You may reveal a noncreature, nonland card from among them and put it into your hand. Put the rest on the bottom of your library in any order. | Magali Villeneuve