It reads: As long as this spell is on the stack, players cant cast spells or activate abilities that arent mana abilities. If this was able to stop a player from morphing a creature then Sudden Shock would be a great answer to morph creatures
While many of his Pokemon are weak to Grass, there are some that are not (like Shellder)
Originally, artifacts that were tapped were turned off, and that was the rule until 6th Edition
There are 6 Common cards, 1 Common or The List card (The List being special cards, usually reprints, the selection of which can change between sets), three Uncommon cards, 1 non-foil Wild Card (this can be anything from the main set that the booster is a part of), 1 Rare or Mythic Rare from the boosters set, 1 Foil card of any rarity, 1 Basic Land card and, finally, 1 non-playable card, which can be a token, play aide, ad card or art card