{1}{U}: Mercurial Merfolk gets +2/-2 until end of turn. When Mercurial Merfolk dies, draw a card.
Janneke's obsession with the mortal soul lead her to study humanity itself. Accounts would never be enough; she and her cohorts would need to experience society firsthand.
Whenever Merfolk Visionary or another Merfolk creature you control enters, scry 2. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)
Improve {1}{G/U}({1}{G/U}: Put a +1/+1 counter on this creature. This costs {1} more to activate for each +1/+1 counter on it. Improve only as a sorcery.) You may play an additional land on each of your turns. Wanderlust — At the beginning of your end step, if you control four or more differently named lands, you may draw a card.
Kicker {2}(You may pay an additional {2} as you cast this spell.) Prowess When Merkurio's Opus enters, if it was kicked, draw two cards, then discard two cards.
Return target nonland permanent to its owner's hand. Reprise {2}{U}(As you cast an instant or sorcery spell, you may exile one card with reprise from your graveyard and pay its reprise cost. If you do, add its effects to that spell.)
Motivate 1 (When this creature enters, you may motivate target creature with less power than this by putting a +1/+1 counter on it.) When Merthilios' Escort motivates a creature, that creature gains first strike until end of turn.
Equipped creature gets +2/+1. Whenever a creature you control deals combat damage to a player or planeswalker, you may attach Mervin's Armor to it. Equip {4}
“Being able to take hits is important, of course, but remember, no monster can take hits forever. They have to be able to finish the fight eventually.” —Masaru, aspiring champion
I, II — Target creature you control gets +2/+0 and gains menace until end of turn. Discovery — Attacking creatures you control get +2/+0 and have menace.
{T}: Add one mana of color. {3}{G}, {T}: Audition for green. Activate only as a sorcery. (Create a 1/1 Construct Actor creature token, a Scout Role giving 2/3 and vigilance, or a Warrior Role giving 3/2 and trample. Roles replace older ones.)