For the item, check Baseball Bat (Item)
The Baseball Bat is a weapon for defense and melee zombies (Not plants). It takes 3 turns to use it, but you can hit using it after being close from the previous turn. It does 5 damage. 4 turns to do a total of 20 Damage. It is a very weak weapon, as it is a beginner one.
A Bat: Free
Sun Ray: 3,000,000$ (Requires Level 5 + 3 characters with that level.)
Sun Ray is a very overpowered variant. It can deal 5000 damage, but it can be used once per RP.