Not only is it in an ideal color identity for birds, it also rewards you with a triggered ability that scales up the more birds you swing with
Arena Cube Best of One Entry Fee : 4,000 gold Match Structure : BO1 Max Rewards : 6,000 gold and 1 uncommon and 2 rares Max Wins / Losses : 7 / 3 Best of Three Entry Fee : 4,000 gold Match Structure : BO3 Max Rewards : 6,000 gold and 2 uncommons and 1 rare Max Wins / Losses : 7 / 3 Arena Cube comes around MTGA once in a blue moon and is the equivalent of the Vintage Cube from MTGO, meaning you get to draft the best cards that Arena has ever seen
Even if you counter a warp spell, its still considered a warped spell for void purposes
Is this the synergy line they were hoping to achieve by turning Loamcrafter Faun into a regrowth
Luckily this is pretty easy to achieve in blue
Instead of having an intermediate step, you can use Rare Candy to skip over the Stage 1 Pokmon entirely, meaning that Pokmon like Charizard ex can enter play one turn quicker than usual