I’ve been following a lot of sources and came across many myths on how to effectively summon 4/5* Monsters.
Disclaimer: These are methods told by players. I do not guarantee any of these methods and will not be liable if you do not summon any 4/5* Monsters. Ultimately, it’s still based on your luck. This is just for fun :).
Methods
1. Crystal summons have better chances of obtaining 4/5 * monsters  compared to Mystical Scrolls.
2.
– Use unknown scrolls.
– Get consecutive 2* monster summons 3 times in a row.
– Use Crystal Summon
– Lightning strikes and there’s your 4/5 * monster.
3. Find your own auspicious timing.
4. Similar to the 2nd method, use unknown scrolls to “wash” away all the bad rolls first, and once you think it’s enough, use your mystical scrolls or crystal summons.
5. Shake your phone while summoning (make sure no one is around or they’ll think you’re mad).
6. When someone summon’s a 5 * Monster, summon exactly 30 minutes later to get your own 5* Monster (Provided by *~Tia~*)
7. Summon immediately after you get a 4/5* to acquire another 1 immediately (Provided by JeffTan)
I’m sure all of you have your own private method and believes. Why not share them in the comments below and who knows, one of you might be correct about the “random summons”