Sorcery speed, an extra blue mana, two cards less seen, which usually results in one card less overall
Some decks include tricky mechanics to challenge opponents, such as Staraptors attack lock, Medichams move-canceling Acu-Punch-Ture, or Quaquaval exs forced switching, adding layers of strategy beyond raw power
There's a case to be made that Glissa, The Traitor belongs on the list, but the current build is really a finely tuned Necrotic Ooze/Hermit Druid-combo deck that could easily be seen in Teneb, The Harvester or any other G/B/u/r/w build
This card leaves quite a lot to be desired though
Being able to copy one or more of your enchantments each turn is very powerful, especially with enchantments like Sterling Grove
For example, these six cards show the chaotic end of Book 2 battle involving Prince Zuko and his sister Azula: Combustion Technique Zuko, Conflicted Azula, Cunning Usurper Aang, at the Crossroads / Aang, Destined Savior Katara, the Fearless Dai Li Agents These cards can be found in Play Boosters and Collector Boosters, both in foil and non-foil treatments