It churns out Goblin creature tokens, but at the cost of giving up two every single time you use its ability
Phelia, Exuberant Shepherd and Ephemerate are the gold standard for blink cards currently, and Airbender Ascension is slower than both
If you have a card in hand at the moment the trigger condition occurs, Bloodhall Priests ability wont trigger, even if you can get that card out of your hand right afterward
However, it is clear that by using the extra card, a player can gain extra resolution in their land-drop frequencies, allowing more fine-tuning for mana ratios
It's a great deck-filler card to have, but a pity the iconic first appearance of Mickey isn't more useful during the game
If the gift wasnt promised, you lose 2 life