Playstyle
Frog Form
Reaper Frog is a Physical Damage DPS Guardian. He's easy to summon, and he does good damage. He has two forms: Frog Form, and Dian Form. Unlike the Mythic Frog Form, Immortal Reaper Frog is a very solid DPS unit. He has damage comparative to Lazy Taoist or Overclocked Rocket Chu. He's also much cheaper to summon than Rocket Chu, which is very good since they both have a chance to die when being summoned, meaning the risk is lower when summoning Reaper Frog, although Rocket Chu does have a higher success rate at 50% versus Frogs 35%.
Reaper Frog's summon cost is low enough that at Luck Stone level 6+, he can somewhat consistently be summoned before wave 20 on Hell Mode. Since all you have to do is get a King Dian, you'll get a Reaper Frog on average within 3 tries. He can easily carry until wave 40, usually including the wave 40 boss. This makes him a great unit to allow you to stack econ, and slowly build the rest of your board. He also applies 80 slow to enemies with his skill "Suppression", which is overall a great skill to have as it prevents stun leaks. For comparison, the Mythic Guardian Coldy applies 50 slow with her passive, and 50 slow with her skill, and Penguin Musician applies 60 with his skill. So Reaper Frog's 80 slow is one of the stronger slows in the game.
Dian Form
Reaper Dian is a Magic Damage DPS Guardian. When you get Reaper Frog, you can do the same curse lift ability the standard frog has to transform him into Reaper Dian. It has a 35% chance to succeed by default, increasing to a 50% chance to succeed at level 12. Overall, this means the odds of succeeding in both transformations is 12.25% normally, and is raised to 17.5% at level 12. Or, 1 Reaper Dian every 8 regular Frogs 1 Reaper Dian per 6 regular Frogs at level 12. Reaper Dian is a significant upgrade overall. There have been videos of high level players clearing Hell Mode with Reaper Dian as the only DPS on the board. His skills and passives all revolve around dealing massive damage.
Skills
Frog Form 
Reaper's Ascension - Passive
Has a 35% (50% at level 12) chance to ascend and become a divine being. Vanishes when ascension fails.
Suppression - Skill
Has a 8% chance to deal 12000% Physical DMG to enemies in their range and reduce their movement speed by 80.
Execution - Skill
Has a 12% chance to deal 9000% Physical DMG to enemies in range. Instantly executes enemies if their HP is below 5%.
Dian Form 
Reaper's Instinct - Passive
Instantly executes enemies with HP below 5%.
Death Lightning - Passive
Basic attacks deal 2000% area damage.
Chain Lightning - Skill
Has an 8% (+5% at level 6) chance to deal 35000% Magic DMG to a target and chain the damage to nearby enemies 10 times.
Death Touch - Ultimate, MP
Summons a hellish zone that lasts for 20s, dealing 600% Magic DMG every 0.1s.
How to Summon
Reaper Frog is the easiest to summon out of the first 3 Immortal Guardians. To get a him, all you need to do is turn a normal frog into a Dian. Once you get a Dian, at any point you will be able to convert it into a Reaper Frog. From there, you can try to curse lift your Reaper Frog, into his Reaper Dian Form.
To get a Reaper Dian more easily, you can keep making Dians from the normal Mythic Frog. When you have both a Dian and a Reaper Frog on the board, if you try to lift the curse on the Frog and it fails, you can immediately turn your Dian into a Reaper Frog. You can use this strategy to make multiple attempts at Reaper Dian, without having to give up having his base Frog Form if you fail.
Gameplay
Back to Immortal Guardians main page