Recently Steem Monsters shut down their upvote service and for people like me who love doing give away's and enjoyed the extra boost for promoting Steem Monsters, it was a big let down. But there is some good news, they have started an up-vote bot using DEC dark energy crystals. It's really simple to use and as of right now well worth it. Here is a step by step guide on how to use it.
Step one-
send at least 100 dec to 
Step two-
wait for the bot to reach 100% and you will be up-voted a percent depending on your amount of dec you sent in comparison to the total.(If 20 people sent 100 DEC each, each person would receive a 5% up-vote)
At the moment 100 DEC is about .10-.15 but your up-vote should around double. Of course that depends on the price and amount of users which can vary.
Sending a really large amount of DEC is not that smart because you may receive a big percent of the Up-vote but at some point you will lose money because even if you get 100% up-vote it may be less than the DEC you bought.
One last thing I wanted to mention is this creates more value for DEC and is good for the over all Splinterlands Eco system and community.