---
name: "Frontier Explorer"
mana_cost: "{W}"
cmc: 1
type_line: "Creature — Cat Scout"
colors: []
color_identity: ["W"]
keywords: []
set: "CMB2"
set_name: "Mystery Booster Playtest Cards 2021"
collector_number: "6"
rarity: "rare"
artist: "Mary Josberger"
oracle_id: "2224de7b-6717-41fc-b360-00af879075a1"
canonical_url: "https://avascry.com/printing/frontier-explorer-cmb2"
legalities:
  commander: "not_legal"
  standard: "not_legal"
  modern: "not_legal"
  pioneer: "not_legal"
  legacy: "not_legal"
  vintage: "not_legal"
  pauper: "not_legal"
  penny: "not_legal"
---

# Frontier Explorer
- **Mana Cost:** `{W}` (CMC: 1)
- **Type:** Creature — Cat Scout

## Oracle Text
{3}, {T}: Until end of turn, you may play one basic Plains card from outside the game.

## Top 4096-Dim Neural Synergies
1. [Oreskos Explorer](/printing/oreskos-explorer-cmm.md) — Creature — Cat Scout
2. [Kor Cartographer](/printing/kor-cartographer-khc.md) — Creature — Kor Scout
3. [Frontier Seeker](/printing/frontier-seeker-otj.md) — Creature — Human Scout
4. [Scholar of New Horizons](/printing/scholar-of-new-horizons-brc.md) — Creature — Human Scout
5. [Pilgrim of the Ages](/printing/pilgrim-of-the-ages-stx.md) — Creature — Spirit
6. [Endless Horizons](/printing/endless-horizons-eve.md) — Enchantment

## Printing Details
- **Set:** Mystery Booster Playtest Cards 2021 (CMB2) #6
- **Rarity:** Rare
- **Artist:** Mary Josberger

## Format Legalities
Commander: `not_legal` | Standard: `not_legal` | Modern: `not_legal` | Pioneer: `not_legal` | Legacy: `not_legal` | Vintage: `not_legal` | Pauper: `not_legal` | Penny: `not_legal`

## Official Rulings
- *(2019-11-12)* In a casual game, a card you choose from outside the game comes from your personal collection. In a tournament event, a card you choose from outside the game must come from your sideboard, which includes an arbitrary number of basic lands. You may look at your sideboard at any time.