@TII Read the title of our thread ET linked.
Welcome to the forums and Card Ideas and Art! It looks like you have some interesting ideas and the potential to become a good card designer.
Alright, so here's my thoughts:
Shard of Fortitude
Interesting card, it seems a little strong considering it can stack, even with 8 Other as a cost. I think bringing down the bonus to your creatures to +1 | +0 would be a good idea and lowering the cost to 6 Other. Keep developing this card, it has potential.
Shard of lecherousness
Lecherousness means lustfulness correct?
Thematically Shards are meant to represent positive values (Gratitude, Readiness, Divinity) and lustfulness doesn't really fit it so well.
This card seems sort of redundant considering that there are already a bunch of methods for Quantum denial, and regenerating 1 HP doesn't seem to be worth it (at best you'd regenerate 6 HP with all 6 of these out - people would just use Shards of Gratitude instead.)
I suggest dropping Shard of Lecherousness. It's a nice try but I don't think it will work that well.