This article lists the changing premium gachas in the game's gacha (ガチャ) page. For information about gachas in general, or to see the gacha lineup that does not change, see the Gacha article. The premium gachas change often, so this page may be outdated.
The gacha tab is labeled special (特別) and will only be visible if gachas in this category are available. Rules for earning leader medals and rainbow medals apply here, but the difference is that they must be rolled with DMM points instead of flower stones. Any unmentioned gachas in this tab are probably listed in the permanent special gacha section.
Rainbow Equipment Flower-Attached Gacha
This is a promotional gacha. It costs 3,000 DMM points to roll for an 11x. It can be rolled once. It is available until 3/5 maintenance.
Rolling this gacha gives you a rainbow equipment flower to unlock an equipment slot on absolutely any character.
Winter Special Gacha '17
This is a promotional gacha. It costs 5,000 DMM points to roll for an 11x. It can be rolled once. It is available until 2/19 maintenance.
Rolling this gacha gives you a pick any 5* or 6* ticket which lets you trade for any 5* or 6* gacha character of your choice. The available characters include all those up to and including event 77 (it does not include the Current Event). The ticket will never expire.
You also get 30 flower stones as an amenity.
Premium Gacha 1
This gacha tab is labeled added characters (追加キャラ). This tab always features the gacha characters from the Current Event.
Premium Gacha 2
This tab features gacha characters from the reprint event during the first week of that event. During its second week, an unrelated lineup is shown.
This is currently a reprint event selection gacha.
Premium Gacha 3
This is currently an added bloomability gacha. The featured characters recently got blooming with features included.