Tidal Flats
Enchantment
: For each attacking creature without flying, its controller may pay 
. If that player doesn't, creatures you control blocking that creature gain first strike until end of turn.
- CMC
- 1
- Mana cost
- Color identity
- U
- Rarity
- common
- Set
- Fallen Empires
- Price
- $0.15
- EDHREC rank
- #27440
Tidal Flats locks down non-blue attacking creatures by forcing them to pay an extra mana or lose their attack step — a soft tax that compounds quickly in multiplayer. The effect is real but narrow: it blanks aggro from green and red decks while doing nothing against flying blue threats or any creature whose controller has mana to spare.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | not legal |
| pioneer | not legal |
| standard | not legal |
| vintage | legal |
| pauper | legal |
| oathbreaker | legal |
Tidal Flats sees essentially no competitive play in Legacy or Vintage, where the speed of those formats makes a conditional attack tax irrelevant before it can matter. In Pauper it's legal but outclassed by more reliable defensive options. Commander is the only format where Tidal Flats earns a slot — specifically in blue stax or pillow-fort builds that want to pile up small taxes across multiple permanents, making combat collectively painful without any single effect being worth answering.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.15 bulk tier
At $0.15, Tidal Flats is deep bulk — the price reflects its near-zero demand outside extremely niche Commander builds. It's stable at that floor; don't expect movement in either direction.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.