FOILCheapest priced copy (Magic Origins): $0.49 at Card Kingdom, near mint, their price list as of .
Mizzium Meddler 
Creature — Vedalken Wizard · 1/4 · Rare · Magic Origins Promos · #64s
Flash (You may cast this spell any time you could cast an instant.)
When this creature enters, you may change a target of target spell or ability to this creature.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
3 printings · $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Magic Origins | 64 | Rare | $0.49 | $0.49 |
| Magic Origins Promos | 64 | Rare | — | $0.49 |
| Magic Origins Promos | 64s | Rare | — | $0.49 |
7 rulings from Wizards of the Coast
- 22 June 2015If Mizzium Meddler leaves the battlefield before its ability resolves, the targets remain unchanged.
- 22 June 2015Mizzium Meddler’s triggered ability can target a spell or ability even if Mizzium Meddler wouldn’t be a legal target for that spell or ability. However, the target of that spell or ability will remain unchanged.
- 22 June 2015If changing one target of a spell or ability to Mizzium Meddler would make other targets of that spell or ability illegal, the targets remain unchanged.
- 22 June 2015The target of the spell or ability won’t change unless Mizzium Meddler fulfills all the targeting criteria. If a spell or ability has multiple targets, such as Send to Sleep, you can change only one of the targets to Mizzium Meddler.
- 22 June 2015If Mizzium Meddler’s triggered ability targets a spell or ability with no targets, nothing happens.
- 22 June 2015If the spell or ability has multiple instances of the word “target,” you choose which target you’re changing to Mizzium Meddler as Mizium Meddler’s ability resolves.
- 22 June 2015If a spell or ability has a variable number of targets, you can’t change the number of targets.