In the deckbuilding card game Slay the Spire, I encountered this card description:
強打:8ダメージを与える。弱体2を与える。
(弱体 is a status effect that in this case, lasts for 2 turns.)
Previously I had only seen numbers come before their counters, so I wondered why the choice was made to put it afterwards in the second sentence.
The only analysis I could think of is that this is a noun + number + counter combination, where there's an implied counter being omitted, as in:
弱体2(回)を与える
My question is why would one put a number after a counter/noun, how does it work grammatically, and how does it differ in meaning with putting it beforehand?