The TMs could be either offensive or defensive. For example: Thunderbolt and Baton Pass.
Thunderbolt could allow for a shot that hits three adjacent tiles in a jagged path (kind of in this shape of > ).
And baton pass could allow for an undamaged pokemon to switch places with another undamaged pokemon; swapped pokemon must share at least 1 tile as the one that was in its place and may not conflict with already placed pieces (i.e. pokeballs, TMs, substitutes, and other pokemon)

TMs should be announced when used
TMs and items from pokeballs probably shouldn't be able to be used in conjuncture with or in the same turn as an item.

Originally posted by Syl:

The TMs could be either offensive or defensive. For example: Thunderbolt and Baton Pass.
Thunderbolt could allow for a shot that hits three adjacent tiles in a jagged path (kind of in this shape of > ).
And baton pass could allow for an undamaged pokemon to switch places with another undamaged pokemon; swapped pokemon must share at least 1 tile as the one that was in its place and may not conflict with already placed pieces (i.e. pokeballs, TMs, substitutes, and other pokemon)

TMs should be announced when used
TMs and items from pokeballs probably shouldn't be able to be used in conjuncture with or in the same turn as an item.

To expand on this use spikes, toxic spikes, and stealth rocks and place them on your side of the board. If someone selects let's say spikes they reveal if that spot was a pokemon and it is considered hit, and toxic spikes could be if it hits it slowly hits the pokemon (Not saying location) until it's sunk, and stealth rocks could be if it is a pokemon weak to it then it effects one more tile away