To prepare against Thoughtseize, Modern decks need to bring a certain level of resiliency and redundancy to the battlefield
Black has Undead and Vampires
Its potentially quite a bit of direct damage spread out across the board, and its still a 3/3 with first strike for 3 mana
That archetype traditionally doesnt have a ton of card draw options, mind you, making this a bit more valuable
IV Add WW, UU, BB, RR, and GG
Zen Takahashi Similar to what I will talk about with the next card on the list, much of that applies for Force of Negation as well, though the three-mana spell is definitely more focused towards handling degenerate combo decks than the second place finisher is