|Tier I||If there are fewer than 3 frozen cells, attempting to unflag a cell will freeze it instead.|
|Tier II||Increase the limit of the above effect by the number of stage mods.|
|Tier III||[3 Charges] Shatter all frozen cells, causing each to explode in a 3x3 area|
|Unlock I||Unlock by beating a stage with at least frozen cells.|
|Unlock II||Unlock II by beating a stage with at least 30 frozen cells.|
|Unlock III||Unlock III by beating a stage with at least 50 frozen cells.|
The main benefit of Snowflake is that, baring stage mods, at least 3 50-50s per stage can be solved without guessing. Because of this, the mastery is surprisingly reliable once a player is aware of how to do that. Even under perfect conditions you still need to be careful when and how you freeze cells however as you can make a wall of flagged monsters and ice that will block off information and force yourself to need to guess again.
Techniques: Solving 50-50s
How many you can solve on one stage is based on how many frozen cells there are on the current stage, how mant stage mods there are and if you can remove any frozen cells. Every stage mod increases this limit of frozen cells by 1 allowing you to solve more. That being said, stage mods like Nightmare that prevents you from being able to freeze, Uncharted that makes freezing mostly useless, Judging that makes flagging empty cells hurt you, or frozen and elemental stages that start you off over your limit for freezing cells make the strategy less effective.
Generally, the best time to solve 50-50s with the snowflake's ability is when there's no other way to solve that 50-50 such as at the end of the level when there's no more useful information to work off of.
Techniques: Freezing with no monster count
Outside of solving 50-50s the ability to freeze cells also lets you ignore certain cells entirely. If you can't see the monster count then simply freezing both cells in a 50-50 is also a way to solve it.
Uses for your Mastery Ability
The Snowflake's mastery ability explodes all of the frozen cells on the stage and has 2 main uses. The first use that it has is that you can make frustrating stages with stage mods that create a lot of frozen cells such as Frozen and Elemental a lot easier by just blowing up all the frozen cells and the whole stage along with it. The second use is that you can use the explosion to get rid of strangers such as harbingers and bagmen along with even bosses leaving you with a much easier stage. Simply freeze a cell next to whoever you're trying to explode if/when they're not out in the open and then use your mastery ability.