At the beginning of your first main phase, add or for each Raccoon you control.
Whenever you expend 4, you gain 3 life. (You expend 4 as you spend your fourth total mana to cast spells during a turn.)
Whenever you expend 8, exile the top two cards of your library. Until the end of your next turn, you may play those cards.
A permanent with an ability that triggers whenever you “expend N” will see mana you spent to cast spells the turn it enters, including mana you spent before it entered. For example, if you cast Junkblade Bruiser (a creature with a mana value of 5 and an ability that triggers whenever you expend 4) by paying its full cost of five mana, you’ll already have spent four mana on spells before Junkblade Bruiser enters, and therefore its ability that triggers whenever you expend 4 won’t be able to trigger at all that turn.
26-07-2024
wotc
Abilities that trigger whenever you “expend N” only trigger when you reach that specific amount of mana spent on casting spells that turn. This can only happen once per turn. For example, if you’ve spent three mana on spells so far this turn and you control a permanent with an ability that triggers “whenever you expend 4,” that ability will trigger the next time you spend at least one mana to cast a spell this turn. It won’t trigger again if you spend another four mana to cast spells later in the turn.
26-07-2024
wotc
You choose {R} or {G} for each Raccoon you control. You aren’t limited to only one color of mana.
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wotc
Muerra’s first ability is not a mana ability. It uses the stack and can be responded to.
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wotc
You pay all costs and follow all timing rules for cards played this way. For example, if one of the exiled cards is a land card, you may play it only during your main phase while the stack is empty.
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wotc
If the cost to cast a spell is increased, decreased, or changed because of additional or alternative costs, expend counts only the mana you actually spent.
26-07-2024
wotc
You may play the exiled cards even if Muerra is no longer on the battlefield or under your control.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.
or 
for each Raccoon you control.
Volkan Baǵa2024-08-02
