>>58627155>is one of the most accessible mythical pokémon of allConsidering its runtime, it has been the most accessible of all mythicals proportionate to its life cycle. There hasn’t been a single year of Magearna’s existence where it hasn’t been a readily available giftmon. It was an infinite QR code back in SM/USUM, and in every subsequent gen it has been a permanent Home completion reward.
Jirachi in Japan is more accessible, since they do yearly distros of it for Tanabata, but worldwide it’s Magearna.