1. This is initiated by my friend Odakyo. Due to his busy schedule, this is written on his behalf.
2. Chinese forum has very extensive literature. Things shared here originate from here.
3. Special thanks to these pros (and always liked to pretend to be noobs) - nighteleven, victorylaw, cupidsux, vvv, metacreeper, 5566, MoonChild and many many others etc.
Back to the topic. What is stacked time tunnel? To understand this, lets examine a basic concept on mono decks. Mono decks excel over rainbow decks in burst damage because of the ability to dissolve multiple sets of atk runes, thus leading to extra dmg multiplier. A hot favourite is fox queen, slime king and skuld time tunnel abilities. In the following examples, I will use dark mono deck as an example.
What is the best damage multiplier possible then? An initial glance will be simply 15 dark runes followed by 5 other sets of misc runes.
What happens when there are 16, 17 or even 18 runes. Many of us just put them into one corner, usually the top corner, and they go undissolved. For 18 runes, its even worse. As the runes are clumped together, we lose some combo bonus as well.
However, there is a way to dissolve 18 dark runes as 6 dark combos! This employs the stacked time tunnel method (I invent this name myself). In the below image, left shows the original placement. In the middle pic, the yellow circled runes will be dissolved first. The right pic shows the remaining runes which will be dissolved next.
If we are to put this into mathematics. Assuming fox queen as leader. In a perfect 10 combos with 15 darks, the dmg multiplier will be 5 x 10 = 50. In the stacked time tunnel of 18 darks with 9 combos, the dmg multiplier will be 6 x 9 = 54.
The main objective of stacked time tunnel's is to try to dissolve as many atk runes as possible while achieving the highest combo possible. However, there is an additional benefit - stacked time tunnel seems to be able to give higher rate of extra falling combos. This is not proven by stats, rather its just a general gut feel.
So, now you are interested to try out stacked time tunnel...but how to know the logic to do this stack? It looks so complicated!. Fortunately, for the average Joe like me, the pros on Chinese forum has compiled a handy pdf sheet that contains all the different placements based on your current board runes. Yes, simply put, stacked time tunnel can be just a memorize effort; match your current board to the pattern on the list and you are good to go. This is the link for the pdf. http://www.sendspace.com/file/u9pjmj
For Android rooted users, there is a special bonus. Download the app Card Explorer - https://play.google.com/store/apps/details?id=com.codediablos.tos After u launch the app, look for the top right corner for a download icon. Tapping on that will minimize TOS watching with a fox icon. Tapping on the fox icon will open a draggable overlay. Most importantly, the last tab (which looks like a stacked pyramid) will show all the rune placements. This can be viewed in-game and you can simply pop the overlay over the mob image then do your rune placement conveniently. Fyi, motley beads refers to misc runes; 10-12 Motley beads means good for 10,11 or 12 misc runes.
Hope this helps all friends, especially for the upcoming Odin. Good luck in squeezing out that additional dmg bonus through this method.