I did some splinterlands trading today... what a rush

Ok so I have not done much trading so far because I didn't really know the market and its been rushing upwards, best thing I could do was hold on for Dear life and hope for the best. We'll now it has cooled a but so I decided to to trading some assets around.

Ok so I had a epic gold foil called war chang, very pretty card but not one I use much at all and was worth about $400 so I decided to sale her.

But what did I buy? I got a level 5 summoner gold foil, plus about 10 dec. Now this might not seem like a great trade given war chang is now worth $80 more but war chang has also been down to $200 while
Qif yiff has grown only upwards. Also I had few other idea in mind:

1. I often need to rent a summoner level 5 fire, so this saves 40 to 80 dec a day in rental.
2. Gold gives 10% bonus to the dec drop, I was only using war change 1 in 20 matchs, this summoner will be used 1 in 4 increasing my dec drop rate by about 30 dec a day.
3. You need power to move up ranks, I often rent for power alone, the war change was worth 10,000 and my 7 Qif yiff are worth 14,000
4. The extra dec allowed me to expand my fire dec and upgrade them to take advantage of the higher summoner, these added an additional 3,000 power and have since grown in value

Ok one other trade, sometimes when monster grow in price fast, like sandworm, the gold foil don't move as fast as there as less of them. Sandworm level 4 and sandworm level 4 gold foil (well 2 level 3s I will combine) were the same price so I did the only thing I could, sold the 4 and snagged the foils. Increasing my power by 800