The first effect is continuous effect.
If your opponent SS a monster, You will have to add 1 counter.
The second effect is ignition effect.
It can only be done during your turn unless the card specifically says otherwise.
So the answer to your question is:
Yes - First effect happens right away.
No - Second effect happens only on your turn.
So You have to have this little nut out on the feild, hope your opponent so summons a monster, protect this little guy, and then you can use its ability.... and we have no force special summon cards yet....