Rules Tip of the Day: The very first part of announcing a spell or ability is to put it on the stack. This means that you immediately put the card on the stack when you play a spell.

Q: I read a something today that suggested that Reaper King could activate the "color-seeing" abilities of other Scarecrows, but I thought that since the King is an artifact creature, it is colorless (unlike Transguild Courier, which explicitly states it is all colors). Does its five-color hybrid cost make Reaper King all colors?

A: Yes. The color of an object is determined by the color of its mana cost. Hybrid symbols count as all colors in an individual hybrid mana symbol. Reaper King has five differently colored hybrid mana symbols, so it is all five colors.

Q: Can you enchant Tatterkite with Sinking Feeling and untap Tatterkite using Sinking Feeling'- ability?

A: No. Tatterkite cannot have counters put on it, so you cannot legally pay the activation cost of Sinking Feeling.

Q: If my opponent has a Prison Term attached to my Ashling the Pilgrim, and I play a Changeling Berserker, would I decide whether to champion or not, or would Prison Term attach to the Berserker, allowing me to just sacrifice it to get the Prison Term out of play?

A: When your Changeling Berserker comes into play, both its ability and the ability of your opponent's Prison Term will trigger. Then these triggered abilities will go on the stack in APNAP (Active Player, Non-Active Player) order and resolve in LIFO (Last In, First Out) order. In other words, the last item added to the stack will resolve first. This means that the triggered ability of your opponent's Prison Term will resolve first. When it does, he can choose to move Prison Term to your Changeling. If he does, you can choose not to champion anything, sacrifice the Berserker and cause the Prison Term to go to the graveyard. If he does not, you can choose to champion your Ashling the Pilgrim, which will also cause the Prison Term to go to the graveyard. Either way, you can cause the Prison Term to leave play if you want.

Q: I have a question regarding the Painter's Servant-Grindstone combo. What happens when a Gaea's Blessing is milled to the graveyard?

A: After the Grindstone ability has resolved and 'milled' all cards into this player's graveyard, the ability of Gaea's Blessing will trigger and go on the stack. When this triggered ability resolves, the graveyard will be shuffled back into its owner's library.

Q: I have a Wall of Roots with four counters on it. Can I use the Wall's mana ability to play Scarscale Ritual?

A: Yes. When you play Scarscale Ritual, you can choose to generate mana with your Wall of Roots, which puts a -1/-1 counter on it, and also put the -1/-1 counter from the additional cost of Scarscale Ritual on the Wall of Roots. This works because state-based effects are not checked during the middle of a spell's announcement. After you generate the necessary mana and before you pay any costs, the Wall will technically have a toughness of zero. But it will still be in play for you to choose it as the recipient of another -1/-1 counter.

Q: I have several persist creatures in play: Kitchen Finks, Safehold Elite, and Heartmender. My opponent, knowing my deck, enchants me with Wheel of Sun and Moon. I then play Enchanted Evening, and after it comes into play, I play Patrician's Scorn. Do my permanents go to the bottom of my deck, or do they go to the graveyard?:

A: They go to the bottom of your library. When all of these enchantments are destroyed, you are enchanted by Wheel of Sun and Moon. The replacement effect from its ability will apply to the event that destroys all of there permanents.

Q: Can I use Memnarch to take control of a planeswalker?

A: Yes, that works. Planeswalkers are permanents; they can be targeted by Memnarch's first activated ability, and once one is turned into an artifact, it can be targeted by Memnarch's second ability.

Q: Does Ground Seal protect against delve?

A: No. Removing cards in your graveyard to lower the cost of a card with delve does not target those cards. Having a Ground Seal in play will not prevent a player from taking advantage of a delve ability.

Q: In a game last night, I had Magus of the Tabernacle in play against an Elf player with three random Elves, five Forests, and an Ambush Commander in play. At the beginning of his upkeep, he decided to stack the triggers with the Ambush Commander on top. He declined to pay the upkeep on the commander. What would happen at that point? Does he still need to pay upkeep for the Forests?

A: At the beginning of your opponent's upkeep step, the ability given by Magus of the Tabernacle to your opponent's creatures will trigger. Whether or not the Ambush Commander is in play, you will either have to pay one mana or sacrifice the permanent that is the source of the ability. It does not matter if these lands are no longer creatures; the ability triggered and it will still affect them.