The price of Key coin after merging with two other crypto coins will depend on several factors, and it's difficult to predict the exact price. Some key influences include:

1. Market Sentiment: Positive or negative perception of the merger will heavily impact price. If investors believe the merger adds value, demand might rise, pushing prices up.

2. Supply Changes: If the merger leads to a change in total coin supply (e.g., combining circulating supply or token burns), this can affect price based on the supply-demand balance.

3. Utility and Network Effect: If the merger increases the utility of the Key coin (e.g., through improved technology, broader adoption, or more use cases), it could lead to price appreciation.

4. Economic and Technical Factors: The merger terms (like exchange ratios, coin swaps, or integration challenges) will play a role in the price movement.

Without specific details about the merger structure, it’s impossible to predict the exact price outcome. However, you can monitor the market's response for early indications.