Trostani, Selesnya's Voice - [Foil] Return to Ravnica (RTR) mtg Magecraft — Whenever you cast

Magecraft — Whenever you cast or copy an instant or sorcery spell

Your opponents can't gain life

Kicker {1}{G} and/or {2}{U} (You may pay an additional {1}{G} and/or {2}{U} as you cast this spell

Surge {X}{R} (You may cast this spell for its surge cost if you or a teammate has cast another spell this turn

you may put a study counter on Pursuit of Knowledge instead

Trostani, Selesnya's Voice - [Foil] Return to Ravnica (RTR) mtg Magecraft — Whenever you castWhenever another creature enters the battlefield under your control, you gain life equal to that creature's toughness. {1}{G}{W}, {T}: Populate. (Create a token that's a copy of a creature token you control.)