They change only the amount of combat damage the creature assigns and how many counters are put on a permanent with station when the creature is tapped to pay the cost of a station ability
Mairsil never really caught on past the initial wave he hit the format with, but he has always been on my mind as I make semi-annual reviews of the new cards each year, looking for discard, blink, or activated abilities that might be perfect for inclusion
I find the idea of Seeker to be weird
As an added bonus, Narset can cast noncreature spells for free
$0.35 Ancestral Katana Kamigawa: Neon Dynasty $0.35 Konda's Hatamoto Champions of Kamigawa $6.99 Konda, Lord of Eiganjo Champions of Kamigawa $0.35 Selfless Samurai (Showcase) Kamigawa: Neon Dynasty Variants $0.35 Asari Captain (Showcase) Kamigawa: Neon Dynasty Variants $0.35 Imperial Subduer (Showcase) Kamigawa: Neon Dynasty Variants $1.49 Kentaro, the Smiling Cat Betrayers of Kamigawa $0.35 Angelic Exaltation Ravnica Allegiance $1.99 Raiyuu, Storm's Edge (Showcase) Kamigawa: Neon Dynasty Variants $0.35 Eiganjo Exemplar (Showcase) Kamigawa: Neon Dynasty Variants $0.99 Indebted Samurai Betrayers of Kamigawa $0.35 Banishing Slash Kamigawa: Neon Dynasty 0 results found
Plus, it's not an equipment or an aura