Development and updates on this website have come to an end. There won't be any more update in the foreseeable future.
More details here

Bullet Expansion

Bullet Expansion
Active
4
Selects 1 tile, then chooses a direction to the right or left of the selected tile. The colors of all tiles in the selected direction will shift one column in that direction, and all tiles in the same column as the selected tile will become Yellow tiles.

Heavy Fire

Heavy Fire
Chain
2612
Deals 150% damage to 1 surrounding cluster.