Untapping Nettle Sentinel

[Jimmathy]

I have this card

I'm not sure how I can use it.

Does attacking with a green creature count as playing a green spell? What about blocking with a green creature?

Can I attack multiple times if I use green instants between attacks?

[Arix]

Does attacking with a green creature count as playing a green spell? What about blocking with a green creature?

No. Playing a green spell means taking a green nonland card (usually from your hand), putting it on the stack, and waiting for it to resolve.

Can I attack multiple times if I use green instants between attacks?

No. You only get one combat phase a turn unless a card's effect specifically grants you another. Just untapping a creature doesn't automatically give you another combat phase.

[Jimmathy]

Ok thanks.

If I have a card like the groundling pouncer in play, does using its ability count as a green spell for the sentinel?

[Arix]

Nope.

[kip]

Basically when u cast a green spell like enchantment sorcery instant creature and anything else tahts not a land(cuz lands are not spells) it will untap

so like it's tapped and u cast a birds of paradise or giant growth the nettle sentinel untaps

[Sphinx]

I have a question about this card:

If there is a Orb of Dreams in play, does the Nettle Sentinel untap from being played itself, or does it still end up being tapped after entering the battlefield?

[Arix]

It'll come into play tapped. It can only trigger if it's already in play when you cast the spell.

[Mana]

if you cast a green creature spell when there's a Darkest Hour in the battlefield, does the nettle sentinel untap?

[Arix]

Yes. Darkest Hour only affects creatures already in play, so it's still green while you play it.