No, a player can’t activate loyalty abilities during his upkeep nor in response to spells or abilities. Loyalty abilities can be activated at “sorcery speed”, only during a player’s main phase.
Does activating a Planeswalker ability count as a spell?
Planeswalkers have activated abilities. Those abilities are not spells.
How many times can you use a planeswalker ability per turn?
You may activate one loyalty ability per Planeswalker per turn any time you could cast a sorcery, including during the turn you resolve a Planeswalker card. (If you have several Planeswalkers in play, you may activate one ability on each.)
Can you target a planeswalker before it uses its ability?
Because the loyalty ability of the planeswalker is not an instant, but a sorcery, they can’t activate it in response to Hero’s downfall and the planeswalker dies before the ability can be used.
Is there any way to activate a Planeswalker ability at?
606.3. A player may activate a loyalty ability of a permanent he or she controls any time he or she has priority and the stack is empty during a main phase of his or her turn, but only if no player has previously activated a loyalty ability of that permanent that turn.
Can a planeswalker use loyalty as a SORCER?
No; loyalty abilities (the CR name for a planeswalker ability) are sorcery-speed only. This is important for the balance of the game. 606.3.
Can You Doom Blade in response to a Planeswalker ability?
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. for the second question, adding or subtracting loyalty is the cost to activate the ability,…
What happens when a planeswalker becomes a creature?
All Planeswalkers that can become a creature —think Gideon of the Trials — have summoning sickness the turn they enter the battlefield like any normal creature, meaning they can’t attack that turn. Unless you have a card that gives creatures haste, like Fires of Yavimaya, of course.
