Oracle

Artifact - Equipment 

Equipped creature gets +4/+0.
At the beginning of your end step, if equipped creature didn't deal combat damage to a creature this turn, sacrifice it.
Equip 2

Tournooi-info

Legal in: Vintage, Legacy, Modern, Commander

Officiele rulings

7/13/2016
If the equipped creature dealt combat damage only to a player or planeswalker, Thirsting Axe’s triggered ability triggers. The same is true if the creature didn’t deal combat damage at all.

7/13/2016
Thirsting Axe’s triggered ability checks whether the creature it’s attached to at the moment your end step begins dealt combat damage to a creature earlier in the turn. It doesn’t matter whether Thirsting Axe was attached to it (or to any creature at all) as combat damage was dealt.

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