CardName: Mesmerector
Cost: 2b
Type: Creature - Human Wizard
Pow/Tgh: 1/1
Rules Text: {B}: monstrosity 1 (If this creature isn't monstrous, put 1
+1/+1 counters on it and it becomes monstrous.)
When Mesmerector becomes monstrous, target player discards a
card. If a creature card is discarded this way, put it onto
the battlefield under your control.
Flavour Text:
Set/Rarity: Comic Book Set Common
Mesmerector
C
Creature – Human Wizard
: monstrosity 1 (If this creature isn't monstrous, put 1 +1/+1 counters on it and it becomes monstrous.) When Mesmerector becomes monstrous, target player discards a card. If a creature card is discarded this way, put it onto the battlefield under your control.
I don't think this is a common effect, even if it is incredibly unlikely to get a ton of value.
This is so not common and I don't know if I like the effect itself.