There are no fights before player level five. You will also not receive Potions and Revive items from Pokéstops before this level, as you have no use for them without access to fights.
Evolving can be helpful, although Combat Power (CP) is generally a much stronger indicator of success in a Gym battle. Additionally, you will want to build your team to combat the enemies' strengths and weaknesses. This follows the typical format from earlier Pokémon games (e.g. Fire is super effective against Grass, Electric is super effective against Flying, Water is super effective against Fire, etc.). This web page should be a useful resource in helping you build a strong team to counter your opponents' types.
The gym system is a little complicated, but in essence, by fighting an enemy gym you reduce that gym's prestige (until eventually your team takes it over). Once your team takes over a gym, you can increase its prestige by continuing to battle there. If there is an empty slot in the gym, you should be able to station a Pokémon there, which will help defend it from enemy teams. Once every 21 hours you can claim a reward for holding a gym by going into the shop menu and tapping the shield icon in the top right. The reward for each Pokémon that is still stationed in a gym is 500 Pokédust and 10 Pokécoins.
You are eligible to claim the "Defender Bonus":
- Once every 21 hours
- If you have at least 1 Pokémon in a gym at the time.
One you have claimed your bonus, you will need to wait 21 hours before claiming it again.
You can gain additional bonuses if you have 1 Pokémon in other gyms as well (you can assign 1 Pokémon to multiple gyms, but you can't have multiple Pokémon in the same gym), which will increase your reward. However, this still is only available once every 21 hours, from the time you last collected your "Defender Bonus".
- Adding Pokémon to new gyms does not reset the clock
- Losing a Gym does not reset the clock
- Changing the time on your phone does not reset the clock[citation needed], as all user information is stored on the servers.
Therefore, the only "strategy" I can suggest is to
- Maintain your gym, so you can maintain your defender bonus
- After the countdown ends, add Pokémon to as many gyms as you can, then claim your bonus, before you lose the gym.
The Old Defender bonus was replaced with an automatic reward system, granting a player 1 coin/10 minutes a Pokémon was active in a gym (raids will place a gym "on hold", and Pokémon will not claim coins in this period, or lose health over time); to a maximum of 50 coins per day, that resets at midnight, and is automatically claimed when Pokémon are kicked out a gym.
This means that if you have 1 Pokémon in a gym for 8 hours and 20 minutes (500 minutes) you will gain the max 50 coins. Any other Pokémon that are in gyms in the same 24-hr period that you claimed this reward will no longer reward you with coins.
Best Answer
Well the higher the prestige on the more time and work it will take another team to take it down. As well if you raise it up it will be closer for another player of your team to add a Pokemon of theirs also making it harder to take down.
Both of those mean your Pokemon will stay there longer and you can continue getting rewards from that gym. Plus there's the small bonus of the more you raise the prestige you get some experience from it too but it's not a whole lot.