Boomer 

Rarity  Element  Class 

Epic 
Dark/Purple 
Barbarian 
Mana Speed  Attack  Defense  Health 

A Average 
541 
663 
1323 
Origin  Family 

Pirates of Corellia  Pirates 
Special Skill: Watery Grave 


AllInOne Reference, courtesy of @Lumi tap on image to view it fully 

Avoiding Overspending & Heartache 

Or: How many summons are needed to get an Epic Challenge Event Hero? 
It’s important to remember that Challenge Event Heroes have EXTREMELY low summoning odds. No amount of summoning will guarantee a Challenge Event Hero.
On average, in a 10pull, you have a 25.1% chance of summoning Boomer.
But that statistic can lead our minds astray in exactly how our odds play out as we continue summoning.
Some useful insights:
 50 times out of 100, you’ll get Boomer by pull 24 (6,400 gems)
 94 times out of 100, you’ll get Boomer by pull 100 (26,000 gems)
 99 times out of 100, you’ll get Boomer by pull 160 (41,600 gems)
Putting that in Perspective

50 out of every 100 people won’t get Boomer by the 24th pull

If 1 Million players each summoned times, 500,000 of those players wouldn’t get Boomer

6 out of every 100 people won’t get Boomer by the 100th pull

If 1 Million players each summoned times, 60,000 of those players wouldn’t get Boomer

1 out of every 100 people won’t get Boomer by the 160th pull

If 1 Million players each summoned times, 10,000 of those players wouldn’t get Boomer
More Insights & Reading
I highly recommend reading these two threads for more information and context on summoning odds:
 How much should I spend? HotM cost, and odds, analysis
 What exactly is a Gacha? (Read before posting things about “unfair pulls”)
If you’ve read them a million times before, you may consider reading them again before deciding on your budget for summoning. A little time spent deciding on how much money you want to risk on summoning goes a long way to avoiding disappointment, frustration, and regret later.