1), you can: You cannot Special Summon monsters for the rest of this turn, except WATER monsters, also the next battle damage your opponent takes this turn from a battle involving your Number monster and another monster is doubled, also Special Summon this card from your hand, and if you do, add 1 Level 3, 4, or 5 Fish monster from your Deck to your hand, except Abyss Shark
A fun build-around in Commander, especially for you control players out there, make sure to keep a few of the best free counterspells in your back pocket (not literally, you cheater) for when you absolutely, positively must counter that mega-threat from one of your foes
One Piece Luffy & Ace Starter Deck
Mox Amber Mox Amber rises in my esteem with each new set
Its more likely your creature will get trample and no stat bonuses
Hurska Sweet-Tooth -- Even if you're not using Universes Beyond cards, food tokens and lifegain decks offer far more powerful effects than temporary buffs