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In the Pokémon game series, Pansage is a Grass-type Pokémon and it evolves into Simisage when traded. There is no specific level at which Pansage evolves through traditional leveling up in Pokémon Black; it requires a different method, which is trading with another player.

Here's the step-by-step guide for Pansage's evolution:

1. Obtain a Pansage in your Pokémon Black game.
2. Build up a bond with your Pansage by battling with it and using items like Soothe Bell to increase its happiness.
3. Once you've built up enough friendship, you're ready to trade.
4. Trade your Pansage to another player. It can be through local wireless, Wi-Fi, or even through a trading system like the GTS (Global Trade System) if available.
5. Upon trading, Pansage will evolve into Simisage for the new trainer.

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It evolves into Simisage when exposed to a Leaf Stone. Pansage is one of the three elemental monkeys. The other two are the Fire-type Pansear and Water-type Panpour.read more >>