The Amplifier Card is a card that, when merged with a specific generator, increases the level of merge items produced by that generator.

The card cannot be merged with:

• - Other merge items on the board.

• - Reward generators.

• - Other game boosters.

• - Currency, crystals, energy, or tools.

You can obtain the card:

• - As a reward for event progress.

• - By purchasing it in the in-game store.