If multiple attacking creatures must be blocked, the defending player must assign blockers in such a way that the greatest number of those attacking creatures are blocked
P/T Number 153 Language English Legal Formats Commander, Legacy, Modern, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Pauper, Pioneer, Standard, Timeless Rulings (3/19/2021) The ability that defines Tarmogoyf's power and toughness works in all zones, not just the battlefield
Negate the activation, and if you do, destroy that card
Some individuals are even purchasing Charizard as an investment, as the value is guaranteed to only increase going forward.
It is currently trading around $152
While this is quite scary in its own right, providing the likes of a Blightsteel Colossus with Ninjitsu, the first time this Ninja's controller uses a Ninjitus ability each turn, they can look at the top three cards of their library, putting one in their hand and the rest on the bottom of their library