Twinkle – Allows you to delete a page and optionally its talk page, all the redirects to that page, and even unlink any links to that page. Ability to delete under multiple criteria is now supported
Batch-delete: Click on the "D-batch" link to activate Twinkle's batch delete feature, allowing you to delete multiple pages at once. The module loads all links on the current page and lets you select which ones to delete, along with options to also delete their talk pages, redirects to those pages, and removing links to those pages. Very useful for instance when closing a discussion at WP:AfD as delete, where you need to delete all pages in a category. You can also use Special:PrefixIndex to generate a list of subpages of a page, and then use D-batch to delete all of them.
SpamUserPage (WP:SUPG) – Allows you to delete a userspace page, block the user, and issue them with a block notice, all in one click, with options for types of blocks, deletion rationale, etc.
User:Mr. Stradivarius/gadgets/Draftify (WP:DFY) – allows you to move a userspace draft to the draft namespace without a redirect (deleting the userpage), tag the new draft with a draft template, and notify the user of your action
Special:Nuke – MediaWiki-provided tool to selectively delete all pages created by a user.
Deleting revisions
massRevdel – Selectively revdel/suppress all edits by a user
