Researching cards in the Research Lab will unlock Combos ( ) that can be played during battle.
Even if two cards you own can make a combo, you need to Research any combo before you can actually use it in battle.
RESEARCHING A COMBO
Tap the Research Island on the main menu to begin. There are four (4) Research Chambers on this screen: the Ad Chamber, two regular chambers, and a Combo Mastery chamber. Using the ad chamber requires watching one ad each time you load a combo into the Chamber. If you are a VIP Passholder, you will not need to watch ads to use it.
Details about the Combo Mastery Chamber are available here.
Tap or click on one of the first three (3) chambers to open it. Drag and drop two cards into the card slots and hit the green research button to begin. It will take some time to complete your research and it will vary by the rarity of the cards being researched (details below).
Tap or click on a chamber that is in use for information about the combo and for options to speed up the timer: using Gems ( ) or Research Boosts ( ).
You can also reduce research times by watching ads and increasing your Ad Bonus. The Ad Bonus does not reduce research times retroactively and will only affect research started while the bonus is active.
When the research is complete, you'll be able to play the combo in battle! Combos ( ) are unlocked by research and played in battles; they are not equipped and will not visible in your inventory or deck.
You can view all the Combos ( ) you have unlocked for any given card by clicking on that card (either in battle, or in the deck/card inventory screen), and then clicking on the 'Combos' tab.
You can view how many Combos you have discovered by navigating to your Player Profile.
PLAYING A COMBO IN BATTLE
In battle, play one card atop the other to create the combo. It will take two turns, but the result is usually stronger than the one card on its own.
Power Card Combos have a bit of an advantage: they are pre-made and can be played in just one turn. There are some drawbacks, though, such as the fact that some combo-based skills do not trigger with Power Card Combos. Additional details here: FAQ Power Cards.
CARD RARITY AND RESEARCH TIMES
CARD RARITY |
CARD RARITY |
WITH ACCELERATOR |
||
+ | 1 hour |
15 minutes |
||
+ | 8 hours | 2 hours | ||
+ | 8 hours | 2 hours | ||
+ | 24 hours | 6 hours | ||
+ | 24 hours | 6 hours | ||
+ | 8 hours | 2 hours | ||
+ | 24 hours | 6 hours | ||
+ | 24 hours | 6 hours | ||
+ | 48 hours | 24 hours | ||
+ | 24 hours | 6 hours | ||
+ | 48 hours | 24 hours | ||
+ | 48 hours | 24 hours | ||
+ | 48 hours | 24 hours | ||
+ | 96 hours | 48 hours | ||
+ | 96 hours | 48 hours |