Octavia, Living Thesis 
Legendary Creature — Elemental Octopus8/8
Oracle text (EN)
Legendary Creature — Elemental Octopus
This spell costs less to cast if you have eight or more instant and/or sorcery cards in your graveyard.
Ward
Magecraft — Whenever you cast or copy an instant or sorcery spell, target creature has base power and toughness 8/8 until end of turn.
Printing details
- Set
- C21 · 29
- Rarity
- Rare
- Language
- EN
- Artist
- Simon Dominic
- Released
- 2021-04-23
- Prices
- €0.54 · $0.89
Price history
The trend shows with at least 7 days of history.
- Cardmarket, trend
- CardTrader, Near Mint minimum (EN)
The history starts on October 28, 2026 and grows every day.
Show the data
| Date | Cardmarket, trend | CardTrader, Near Mint minimum (EN) |
|---|---|---|
| October 30, 2026 | €0.56 | €0.37 |
| October 29, 2026 | €0.54 | €0.37 |
| October 28, 2026 | €0.58 | €0.37 |
Prices
| Source | Non-foil | Foil |
|---|---|---|
| Cardmarket | low €0.20 trend €0.56 30-day avg €0.55 | low – trend €0.24 30-day avg €0.24 |
| CardTrader (EN) | NM from €0.37 with Zero from €0.75 | NM from – |
| CardTrader (any language) | NM from €0.37 | NM from – |
Cardmarket updated Oct 30, 2026 · CardTrader updated Oct 30, 2026
Buy and look up
Legality
- standard Not legal
- pioneer Not legal
- modern Not legal
- legacy Legal
- vintage Legal
- commander Legal
- pauper Not legal
- alchemy Not legal
- brawl Not legal
- competitivebrawl Not legal
- duel Legal
- future Not legal
- gladiator Not legal
- historic Not legal
- oathbreaker Legal
- oldschool Not legal
- paupercommander Not legal
- penny Not legal
- predh Not legal
- premodern Not legal
- standardbrawl Not legal
- timeless Not legal
- tlr Not legal
Rulings
-
If an effect creates a copy of an instant or sorcery spell, this will also cause the magecraft ability to trigger.
-
Some effects instruct you to copy an instant or sorcery card in a zone other than the stack. These copies do not cause magecraft abilities to trigger. However, most effects that do this also allow you to cast the copy, and casting the copy will cause magecraft abilities to trigger.
-
For example, if you control Archmage Emeritus and cast an instant or sorcery spell, Archmage Emeritus's magecraft ability will trigger and you will draw a card.
-
Each magecraft ability has a different effect, although they all have the same trigger condition, whenever you cast or copy an instant or sorcery spell.
-
If an effect creates multiple copies of an instant or sorcery spell, magecraft abilities trigger once for each copy created by the effect.
-
If a player casts a spell that targets multiple permanents their opponent controls with ward, each of those ward abilities will trigger. If that player doesn't pay for all of them, the spell will be countered.