Correct. Creatures you control cannot attack you. (Note that attacking also doesn’t technically “target” in the strictest rules sense. For example, creatures you control can attack an opponent who controls Leyline of Sanctity.)

Can you block your own creatures?

The only way you can force your opponent’s creatures to block your attack is with cards that explicitly affect how blocking works. For example, Lure forces your opponent’s creatures to block a specific one of yours. Or Brutal Hordechief will let you entirely choose how blocks happen!

Can you attack your own Planeswalkers?

Planeswalkers can be attacked. Your opponent can block as normal, regardless of whom each creature is attacking (you or one of your Planeswalkers). If a creature deals combat damage to a Planeswalker, that many loyalty counters are removed from it.

What does sacrifice a creature mean?

Sacrifice, often shortened to sac, is a keyword action. It means to move a permanent you control to its owner’s graveyard.

What happens when you block a creature in RuneScape?

If a creature has been assigned as an attacker or blocker and subsequently becomes tapped, it will still be in combat (so you can block with Orim, Samite Healer and then tap it to use it’s ability after you have blocked and it will still be a blocking creature).

What happens if you neither attack or block a creature?

Even if your opponent does not, you’ve traded damage, but you’re behind in the race. One way to think of things is that creatures provide value every turn that they attack or block. If you neither attack nor block with Wetland Sambar, then you’ve wasted a turn’s worth of its value.

Do you have to tap a creature to attack?

If you attack with a creature, then you must tap it when you attack with it, so you won’t be able to use it’s tap ability later in the turn. Note that “tap a creature’s ability” makes no sense.

What happens if you don’t put your creatures into combat?

The value of your creatures plummets if you’re unwilling to put them into combat. A classic example comes up when your opponent attacks a morph creature into your Archers’ Parapet. The morph could turn face up to be a 5-power creature, or the opponent could have a spell like Awaken the Bear in his or her hand.