Steelix ex (109/115) [Unseen Forces] Beastie but there is a rule

but there is a rule booklet

We have available one of the first in the world

Attack 1: [LRW] Elemental Blast (200)

Card Number / Rarity: 149 / Ultra Rare Card Type / HP / Stage: Water / 240 / Primal Card Text: Alpha Growth

Steelix ex (109/115) [Unseen Forces] Beastie but there is a ruleCard Number Rarity: 109 115 Ultra Rare Card Type HP Stage: Metal 150 Stage 1 Card Text: Poke BODY Poison Resistance Steelix ex can't be Poisoned. Attack 1: [2M] Metal Charge (70) Put 1 damage counter on Steelix ex. Attack 2: [2FF] Mudslide Discard 2 Fighting Energy attached to Steelix ex and choose 1 of your opponent's Pokemon. This attack does 100 damage to that Pokemon. (Don't apply Weakness and Resistance for Benched Pokemon.) Weakness Resistance