The final major tech card in 2004 Chaos Control was Magical Scientist
[1] In January 2020, at a German Konami community day event, official representatives stated to community members that the rarity is called Starlight Rare
" Rest for small time
This would justify the additional cost that was put in place for these packs
You should bring a tournament-legal Deck as described above, along with any tournament supplies you will need, such as paper and pen to track Life Points, dice or counters if you are using cards which require them, extra sleeves to replace any that become damaged, and so forth
The classic internet wisdom here is that Averna is theoretically less scary than other cascade commanders and less likely to get sniped by opponents, but I tend to use my removal on rampy commanders early if I can, and anyone whos played the deck knows that's a good idea