trickishly

trick·ish

 (trĭk′ĭsh)
adj.
Characterized by or tending to use tricks or trickery.

trick′ish·ly adv.
trick′ish·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

trickishly

(ˈtrɪkɪʃlɪ)
adv
in a crafty manner
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014