Marshland Bloodcaster's ability affects the next spell you cast after the ability has resolved. If you cast any spells in response to the ability, those spells are cast as normal.
2021-04-16
wotc
If you cast a spell for another cost "rather than pay its mana cost," you can't choose to cast it for any alternative costs. You can, however, pay additional costs. If the card has any mandatory additional costs, such as that of Draconic Intervention, those must be paid to cast the card.
2021-04-16
wotc
If the next spell you cast has {X} in its mana cost, you must choose 0 as the value of X if you pay life rather than pay its mana cost.
2021-04-16
wotc
Even after the ability resolves, you may choose to not pay life rather than pay mana cost of the next spell you cast that turn. However, if you do this, you won't have the opportunity to pay life for any other spells you cast that turn (unless you activate the ability again).
Format Legality
Standard
Not Legal
Future
Not Legal
Historic
Not Legal
Timeless
Not Legal
Gladiator
Not Legal
Pioneer
Not Legal
Modern
Not Legal
Legacy
Legal
Pauper
Not Legal
Vintage
Legal
Penny
Not Legal
Commander
Legal
Oathbreaker
Legal
Standardbrawl
Not Legal
Brawl
Not Legal
Alchemy
Not Legal
Paupercommander
Not Legal
Duel
Legal
Oldschool
Not Legal
Premodern
Not Legal
Predh
Not Legal
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