Adjusted single roll
0.000387%
1 in 258,300 after 1.00x total luck.
Roll To Defend Luck Calculator
Estimate your chance to hit a target unit or rarity after a set number of rolls. Enter the odds and luck values you see in game, then compare the result before spending boosts.
Roll odds
Enter your luck setup
Use odds from your game screen or a trusted source, then test how much each luck multiplier changes the result.
Expected rolls
258,300
Average tries for one hit if the entered odds and multipliers hold.
Chance after 1,000 rolls
0.386%
Chance to hit the target at least once across the entered roll count.
Miss chance
99.61%
Chance to miss the target across the same roll count.
Hit probability bar
0.386% after entered rolls
This uses your entered odds and multipliers. Roll to Defend luck stacking and official rarity odds can change, so treat the result as a planning estimate unless the game shows the exact values.