So the instructions for the 2nd option (after the "~or~") should read "Remove any number of (Beasts)/(Disease)/(Strife)/(Wilds). For each token removed, 1 (Fear) and 3 Damage."
Similarly, if a Power allows adding multiple token types in combinations you choose (e.g., Utter a Curse of Dread and Bone), Intensify can only add extras of token types that are already being added. And if you could add tokens in multiple places (e.g., Spill Bitterness into the Earth), you can only add extra tokens where you already added tokens of that type. Tags: Spirit tokens, Action Modifiers, Hazards Spread Across the Island, Utter a Curse of Dread and Bone, 5 more...
It won't count as destroyed, removed, or replaced for effects that scale off the number of Beasts that leave the board, like A Dreadful Tide of Scurrying Flesh or Pent-Up Calamity. Tags: Destroy, Remove, Replace, Unearth a Beast of Wrathful Stone, 12 more...