Octavia, Living Thesis

eight generic mana one blue mana Legendary Creature — Elemental OctopusPower and toughness8/8

This spell costs eight generic mana less to cast if you have eight or more instant and/or sorcery cards in your graveyard.

Ward eight generic mana

Magecraft — Whenever you cast or copy an instant or sorcery spell, target creature has base power and toughness 8/8 until end of turn.

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23 printings · up to 2.54 $

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Octavia, Living Thesis rulings

2021-04-16
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.
2021-04-16
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.
2021-04-16
If an effect creates a copy of an instant or sorcery spell, this will also cause the magecraft ability to trigger.
2021-04-16
If an effect creates multiple copies of an instant or sorcery spell, magecraft abilities trigger once for each copy created by the effect.
2021-04-16
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.
2021-04-16
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.

Octavia, Living Thesis keyword rules

Ward Rule 702.21

Ward is a triggered ability. Ward [cost] means “Whenever this permanent becomes the target of a spell or ability an opponent controls, counter that spell or ability unless that player pays [cost].”

Some ward abilities include an X in their cost and state what X is equal to. This value is determined at the time the ability resolves, not locked in as the ability triggers.