It's a nice card with this rule set, but it could be countered by buffs/debuffs summoners like the one that I use Death element Thaddius or Lorkus. Nonetheless, if the death element is inactive surely that card would be the best choice to deploy depending on the following rule set.
Thanks for your comment. ☺️
But you played Insidious Warlock...
Shock Trooper at Level 1 is better than the L6 Warlock you played in your team...
Shock Trooper at L6 is vastly superior to the Insidious Warlock:
However, upon looking back at your lineup - I see you are a Scholar.
You may not have access to Shock Trooper. But fwiw - Shock Trooper is kinda the 🐐 in this case.
Keep up the great battles and the posts!