Is there a list of special skills for Scroll cards?
This Wiki (there are probably more Wikis too) shows a comprehensive list of all scrolls currently in the game. The special talents (like "Ranged attacks") are also explained: Ranged attack
You can get an explanation of the various abilities by viewing the card in game, and hovering your mouse over them.
This works in the Deck Builder:
And in matches:
From the ScrollsGuide team, there is this App on Android:
https://play.google.com/store/apps/details?id=com.kbasten.scrollsapp
The description says:
Description
A Guide to Scrolls is a reference to accompany every Scrolls player. It's the most complete collection of information about every scroll available, and features community-written tutorials for the latest game by Mojang.
With this app, you can:
Know everything! Look up categorized info about every scroll.
Stay up to date! Read official news directly from Mojang.
Find specific scrolls! Sift out scrolls by resource or type.
Learn from others! Read up on the latest strategy & techniques with community-written guides.
Rank yourself! See the top Scrolls players, realtime. Search functionality and ranking graphs to see stats for every player.
Know when to play! See full game statistics.
It doesn't cost a thing and is completely ad-free.