Thrain (Dark Grim Reaper) is a good crowd control monster in Summoners War.
He is very useful in ToA since he puts dots AoE without inflicting damage, so he comes in hand when used against floors with monsters that counterattack like Wind Monkey King or Light Yeti or also monsters that buff attack bar like Dark Dragon Knight.
Moreover, his third skill is AoE with five hits that hits random targets (he can strike multiple hits on a single target), and also he stuns for 1 turn the enemies under continous damage effect.
With this skillset he is best runed Violent, since you can use the second skill, Violent proc and then use the third skill to stun the enemies under continous damage effect.
Keep in mind also that h [...] Read full Thrain Review
Increases the Attack Power of ally monsters with Dark attribute by 30%.
Reaps the life of enemy with a deadly scythe. Acquires additional turn if the enemy dies.
Spreads a plague to all enemies with an 80% chance to inflict 2 Continuous Damage effects that lasts for 2 turns. (Reusable in 5 turns)
Meteorites of doomsday fall on to the enemies and the inflicted damage increases with time. Stuns the enemy for 1 turn if the enemy is under continuous damage. (Reusable in 8 turns)