Professor Hojo
The first activated ability you activate during your turn that targets a creature you control costs {2} less to activate. Whenever one or more creatures you control become the target of an activated ability, draw a card. This ability triggers only once each turn.
Buy from Cardmarket
Cardmarket prices from 2026-10-31
Official rulings (3) · Scryfall
Professor Hojo's last ability resolves before the activated ability that caused it to trigger. It resolves even if that activated ability is countered or otherwise leaves the stack.
Activated abilities contain a colon. They're generally written "[Cost]: [Effect]." Some keyword abilities (such as equip) are activated abilities and will have a colon in their reminder text.
Professor Hojo's first ability reduces only the amount of generic mana in the first activated ability you activate during your turn that targets a creature. For example, it will reduce an activation cost of {2} to {0}, but it will have no effect on an activation cost of {G}.