Can I use a Planeswalker ability without a target?

The planeswalker’s ability will always have a target because it can target itself. Example: Ajani Vengeant . The planeswalker might not be able to activate one of its + loyalty abilities due to lack of valid targets, but will have a second + loyalty ability that can be activated in the absence of targets.

Is attacking an activated ability?

Attacking is not the same as activating an ability (compare C.R. 508.1 with C.R. 602.2). Notably, it’s not the same as activating an ability with in its cost, even though, in general, a creature becomes tapped as it attacks (C.R. 508.1f).

Can you activate a Planeswalker ability in response?

planeswalker abilities act just like any other activated ability. they use the stack and can be responded to, so yes you can doom blade the creature in response to venser’s ability.

How often can you activate a planeswalker ability?

Each planeswalker can only activate one of their abilities once per turn and only on your turn. It can only be used at a time a sorcery can be used.

What happens when a triggered ability is activated?

The ability doesn’t do anything at this point. 603.2a Because they aren’t cast or activated, triggered abilities can trigger even when it isn’t legal to cast spells and activate abilities. Effects that preclude abilities from being activated don’t affect them.

When do activated abilities go on the stack?

An activated mana ability doesn’t go on the stack, so it can’t be targeted, countered, or otherwise responded to. Rather, it resolves immediately after it is activated. (See rule 405.6c.) You may activate a mana ability any time you have priority or when you are required to make a mana payment.

Is there limit to number of activated abilities?

Some activated abilities have a limit for activation time and number of activations. For instance, you may only activated loyalty abilitiesin your main phase when the stackis empty and with the condition that that permanent’s abilities have not been activated this turn. In other words, loyalty abilities are played at “sorcery speed”.

How often can you activate abilities in MTG?

The abilities with a keyword Level upare activated. They may be activated only “at sorcery speed”. Skinshifter’s activated ability may be used once per turn. 602.3 To activate an ability is to put it onto the stackand pay its costs, so that it will eventually resolve and have its effect.