I like your idea! Esp. with the plant, but the wording could be changed to Bomb explodes after X-Y turns OR if the card gets killed somehow, which i think would be more convenient in terms of programming.
Thanks reworking the wording might make it more understandable but for the killing of it I designed it so it wouldn't be easily taken out in 1 or 2 turns since killing a bomb would be like defusing it making it useless and if I added this on in addition to the countdown as you suggested there would be more programming associated with this card rather than less.
This card is seriously nerfed because it takes a while to explode while costing a heap of quanta. Note that this is a creature and can easily be frozen. Numbers on the top left aren't associated with creatures...
It takes at most 5 turns to deal 10 damage for 4
+ 1
. Looking at fire bolt it cost 3
to deal 3 damage + 3 more for every 10
you have. So to deal close to the same damage bomb does you'd have to save up 20
which would take a bit, since you'd be playing creatures in the process, something like 3-4 turns
Other cards are much more quanta efficient.
They might be more quanta efficient but they take time to build up the quanta needed (such as fire bolt), they require more quanta to deal about the same damage (crimson dragon), or they require a similar amount of time to deal the same about of damage (fire spirit and lava golem). So really this card allows the user to deal a large amount of damage for a relatively small amount of quanta, and it has a chance to work faster than other fire cards, the drawback is it might back fire.