Cheapest priced copy (Bloomburrow): $0.35 at Card Kingdom, near mint, their price list as of .
Daring Waverider 
Creature — Otter Wizard · 4/4 · Uncommon · Bloomburrow · #44
When this creature enters, you may cast target instant or sorcery card with mana value 4 or less from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Bloomburrow | 44 | Uncommon | $0.35 | $0.49 |
5 rulings from Wizards of the Coast
- 26 July 2024If an instant or sorcery card you cast this way goes to a zone other than exile or a graveyard, perhaps because one of its abilities says to put it into its owner’s hand, it won’t be exiled. This is true even if that same card would be put into a graveyard later in the turn.
- 26 July 2024If a spell has {X} in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.
- 26 July 2024If you cast a spell “without paying its mana cost”, you can’t choose to cast it for any alternative costs. You can, however, pay additional costs. If the spell has any mandatory additional costs, those must be paid to cast the spell.
- 26 July 2024You cast the spell while Daring Waverider’s ability is resolving and still on the stack. You can’t wait to cast it later in the turn.
- 26 July 2024If an instant or sorcery card you cast this way is countered, it will be exiled.