The core function of the POLAR token is to allow users (stakers) to gain additional multipliers on their harvests by spending POLAR during harvesting.
This "gamifies" the yield farming process by allowing users with smaller stakes to compete with those with larger ones.
Here's an example of how the POLAR token works in practice:
Let's say User A and User B are both staked in a Supernova pool.
User A has $1000 of tokens staked
User B has $500 of tokens staked.
After 15 days,
User A has an estimated harvest of $300 reward tokens
User B has an estimated harvest of $150 reward tokens
When User B unstakes, he has the option of spending POLAR to gain a bonus multiplier on his rewards. Let's say he spends 1,000 POLAR for a 1.5x on his rewards.
Now, User B unstakes and receives $210 worth of reward tokens (the extra rewards comes from User A's share). So when User A unstakes and receives $240 of rewards.
The 1,000 POLAR that User B spent is locked into the Supernova contract, and can be withdrawn by the pool creator. When the tokens are withdraw, half is burned and the other half goes to the pool creator and can be used for project development funds.