The best encounter card negation in the entire game.

1) It is a 0 cost card. 2) You can set it in advance and trigger it when you need to. 3) Preparation Synergies particularly with Practiced Plan.

Sure, Spider-Ham can negate any encounter card rather than only Treacheries, but most of the time, you want to be stopping Treacheries, they are the game enders really. Spider-ham and most other Encounter Card negatations are events and therefore have to be drawn at the right time, or held onto, reducing the overall efficiency of each turn the card is held onto for.

Intelligence Analysis only really fails when you have no threat on your suit form upgrade - particularly if you get combo'd with Discovered when having multiple encounter cards to resolve.