First, you need to transfer your DEC in Splinterlands to your Hive Engine Wallet.
"In order to trade DEC to SPS, convert the DEC to HIVE and then from HIVE to SPS."
Second, log in to https://hive-engine.com/ and click the Market (wait for it as it may take long to respond). And then, click the DEC in the left side of the screen as shown in the photo below (encirlced in orange) and take note of the last price (encircled yellow).
Next thing to do is to Sell your DEC. Just scroll down and you will see the SELL DEC. Enter the price you want (you may based your price in the last price but if you want to sell it fast go lower than the last price) and the quantity you have in DEC. Then, click sell and wait to it to be sold in the market.
You can check your orders in the market by scrolling down and checking the My Open Orders.
After converting your DEC to HIVE, you can now convert your HIVE token to SPS. Just repeat the above steps, click the SPS and BUY SPS.
To transfer you SPS from Hive Engine to Splinterlands for staking, just go to https://splinterlands.com/?p=sps_management. Click TRANSFER, then enter the SPS amount you want to transfer, select Hive engine wallet and press the TRANSFER IN.
For those who want buy spellbook in Splinterlands, you can use my referral link.
https://splinterlands.com?ref=blastx
