1. So.. What's your.. emm, suggestion to make it look fantaseyh.. :3
I'd suggest coming up with an idea of your own with reasoning to back it up. From observing most of your card ideas, you've mostly provided 3-4 word responses, simply changed/abandoned your cards based on other's opinions without strengthening your own, or used argumentative "fluff" that doesn't support your card (for example, you mentioned that making this card an "Ambusher" implies a creature when pikachufan2164 was trying to point out it didn't fit in the game's fantasy setting, and you've repeatedly quoted other posts in your other card idea threads with just a "+1" tacked on.)
Sure, we can suggest ideas for your card, but it's a lot more fun and constructive to flesh out an idea with valid reasons. Be creative!
As for changing the theme: This card is in Darkness and deals damage over time.
What kind of fantasy spell/creature/building do you think would fit this the best? (For example of working theme : Thunderstorm deals one damage to all creatures because a storm covers a wide area and is in Air because it's a weather condition.)
One last note - there's nothing in your art source that implies the picture you're using is royalty-free or not copyrighted. If you want to submit this card to the Crucible you'll have to find different art for your card. (I recommend looking around
www.sxc.hu for allowed pictures.)