Which spells do winners most often learn?

Question

In Dungeon Crawl Stone Soup — in the early game, the midgame, and the endgame — which spells are most often memorized by winners?

Answer 1

The "Spell popularity" article on CrawlWiki contains some of the answers. This post is based on that article.

• All game long: perhaps Blink, Apportation, Swiftness, Repel Missiles, Regeneration, and Summon Butterflies.

• In the early game: perhaps Ensorcelled Hibernation.

• In the midgame: perhaps Agony and Flight.

• In the mid-to-endgame: Control Teleport, Haste, and Controlled Blink.

See the aforementioned wiki article: it includes much more information. This includes information on direct-damage spells, plus a link to the raw endgame spell-popularity statistics.

_{This post is up-to-date for Crawl 0.11. Please edit the wiki article and this post, and add to them. If you'd like me to mark this answer as community-wiki, please comment and request it.}