Most cards that are able to ready a character are restricted from questing multiple times, but Beast is free to quest multiple times, making it a truly dangerous card that can end the game by scoring four or six Lore in a flash
You have loads of ways to trigger this in the Necrons deck itself, particularly all of the cards that have unearth, but youll find even more ways to do this in a dedicated deck
None of the tapping requires mana or tapping her, so you can do them on arrival to the battlefield and as many times as you have untapped stuff
The new rules for Daybound/Nightbound mean new Werewolves will transform more reliably, especially as the newer cards by default enter transformed when it is night
Lesser-used decks might be Azorius, with a focus on protected attacks with cards like Sygg, River Guide
If you don't, the ability won't trigger