Amplify some Dowsing power numbers, since it's locked off in Wonders now.

Ideally, the long-lasting telepathy and item detection should make people
try to use the card on fresher and more dangerous levels. This makes it
closer to the high strategic benefits of Helix and Mercenary, while also
hopefully getting more chances at Wild Magic (and possibly Focus) to mean
more (than mutations or banishment, anyway) by using the deck not so far
away from any danger. Hopefully.