There's a promo card that is redeemable for Android users, the character is shown at the bottom of the above site.
Full character card art: http://www.padpadblog.com/2016/01/worst-v_19.html
Full card info: http://pad.gungho.jp/member/collabo/160122_crows_chara.html
Gold card translations in Chinese: http://pad.skyozora.com/news/「クローズ×WORST-V」合作角色介紹（金蛋）
(MP card costs 100K MP and available from 02/05 00:00JST ～ 02/15 23:59JST or you can get it from a serial code for Android users in the Weekly Shonen Champion magazine from 02/05)
Silver card translations in Chinese: http://pad.skyozora.com/news/「クローズ×WORST-V」合作角色介紹（銀蛋）
GameWith ratings: http://パズドラ.gamewith.jp/article/show/4729
Game8 ratings: https://game8.jp/archives/43096
What is CROWS x WORST V?
http://www.animenewsnetwork.com/feature/2008-07-21
http://www.konami-digital-entertainment.co.jp/en/news/topics/2015/1105/
There is quite a few mix and match of existing leader skills and active skills for this collaboration. All the gold cards, except the MP card Saburo Hanazawa, have a type killer awakening so their total multiplier is actually quite high against the relevant types. Here are some of the notable cards for me:
6* Harumichi Bouya
Eschamali-ish active skill for red orbs but converts one less orb. Awoken DLucifer-ish leader skill but for red attackers. His only weakness IMO is his one-sided awakenings as he is only powerful against devils with that type killer awakening.
6* Lindaman
Yomi Dragon's active skill but for red orbs. The leader skill is quite powerful but he's lacking skill bind resist for a leader IMO.
4* Yasu
I'm just pointing him out for his 2 dark resist awakenings. These type of cards can be useful against those huge DQ Hera pre-empt damage but for now I don't think there is a team for him.
MP card Saburo Hanazawa
He's going for 100K MP and I'm mostly reading about people planning to use him as a sub on Tsubaki.
With the game seemingly moving towards mechs and also the MP God dragons, there aren't any subs for them. The 2 best cards are easily the 6* gold eggs but I think they are useful but slightly lacking in their awakenings.
