Flash

Adaptive Shimmerer enters the battlefield with three +1/+1 counters on it.

As Shimmer enters the battlefield, choose a land type.

Each land of the chosen type has phasing. (It phases in or out before its controller untaps during each of their untap steps. While it's phased out, it's treated as though it doesn't exist.)

Flash

You may cast artifact spells as though they had flash.

Shimmerdrift Vale enters the battlefield tapped.

As Shimmerdrift Vale enters the battlefield, choose a color.

: Add one mana of the chosen color.

Flying

Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.)

Whenever Shimmering Efreet phases in, target creature phases out. (It phases in before its controller untaps during their next untap step.)

: Add .

, : Add one mana of any color.

Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.)

Enchanted creature has flying. (It can't be blocked except by creatures with flying or reach.)

: Return Shimmering Wings to its owner's hand.

Flying

At the beginning of your upkeep, return up to one other target enchantment you control to its owner's hand.