You’ll add the full rules text of each card you reveal onto the ‘base’ spell, and have to pay an extra cost when you get to paying for the spell- in this case, 2B for Goryo’s Vengeance, since that’s the Splice cost. As you’re casting an Arcane spell (Nourishing Shoal in this case), you may reveal as many cards with Splice onto Arcane as you want. So how does that WORK? Pretty easily- any time you’re casting an Arcane spell, you can add effects onto it from the cards in your hand that have Splice Onto Arcane. Splice was a mechanic introduced in the Kamigawa block about 11 years ago, and it lets you sort of build your own spell! Both Goryo’s Vengeance and Nourishing Shoal have the subtype “arcane”, which is good because Splice cares about subtypes (technically it only cares about Arcane right now, since the only Splice cards that exist are Splice onto Arcane). More specifically, we’re looking at Goryo’s Vengeance and Nourishing Shoal and how the Splice mechanic works.
Welcome back to the Week of Modern here at the Rules Tips Blog! Today we’re going over a core card in another deck archetype- Grishoalbrand.