revised booster box mtg Magic the Gathering Pack ~ Edition : Toys & Games Sold at Auction: MTG Revised

Who could this mysterious bird belong too

For example, Slifer was able to reduce the ATK of Obelisk card upon its Summon.14 Ra was able to destroy Slifer using its Phoenix Mode.15 Obelisk could destroy Slifer using its effect but not Ra since its at a higher Divine Hierarchy (more about that later)

Monsters (23) Red-Eyes B Dragon x3 Summoned Skull x2 Red-Eyes Darkness Metal Dragon Tragoedia x2 Red-Eyes Black Flare Dragon x2 Red-Eyes Lightning Lord x2 Red-Eyes Wyvern x3 Carboneddon x2 Black Metal Dragon x3 Black Stone of Legend x3 Spells (13) One For One Dragon Shrine Inferno Fire Blast x2 Red-Eyes Fusion x2 Card of Red Jewel x2 Foolish Burial MST x2 Silver's Cry x2 Traps (4) Dimensional Prison x2 Return of Red-Eyes x2 Extra Black Dragon Archfiend x2 Red-Eyes Flare Metal Dragon x3 Dracosack Big Eye x2 Constellar Ptolemys M7 Gauntlet Launcher 101 Exciton Castel Gaia Dragon Master of Blades

Use a location ability

it will remain to be seen whether there will be a home for them