the only hard part for me is 1G. lol
1. there are 4 strikes, only one is hard. so if you want for 3 strikes in 1 weeks, you has 7 weeks green shards to exchange.
2. 10 usual coin, just put 1 charater on the Kaining city JP, every day open the chest, you will get 4 usual coin, and 1 weeks =28 coins, and you just need 10 coins per weeks.
3. 100 imperial favor, you can use writ of experience to exchange, and doing event for it. right now, i has 2000 imperial favor and many writ of experiences. only do the meta, you will get a lot of imperial favor. karma also can exchange writ of experience.
4. everyday tequatl , you have many karma. last times, (3 months ago, i used out the karma, right now, I has 3.6 millions karma.)
I don't know how hard for it. it is just sleepy to get the Antique Summoning Stone per week.