Before Sorin, Sanctum Seeker was basically the only form of reach the deck had and that demands a pile of bodies on the battlefield
Hakbal decks already explore far more than most, so doubling those triggers can result in both huge creatures and hands stuffed full of lands
The creature type update would make him a 'Beast', which is kind of a wastepaper basket for any vaguely-animalistic creature that doesn't fit into any other classification
POWER/TOUGHNESS 2/1 ILLUSTRATOR Square Enix LEGALITIES Standard Future Historic Timeless Gladiator Pioneer Modern Legacy Pauper Vintage Penny Commander Oathbreaker Standardbrawl Brawl Competitivebrawl Alchemy Paupercommander Duel Oldschool Premodern Predh Tlr LANGUAGES EN JP RULINGS 2025-06-06 Triggered abilities use the word "when," "whenever," or "at." They're often written as "[Trigger condition], [effect]." Some keyword abilities are triggered abilities and will have "when," "whenever," or "at" in their reminder text
Players can't take any actions between the time the choice is made and the time the appropriate creatures begin to get +1/+1