katara mtg card Katara, the Fearless Commander Deck | EDH Deck Tech (Avatar) Vigilance When Katara enters Promo] Katara, the Fearless :

Still, it's an unremarkable deck that could do with some major upgrades if you want to turn it into a consistent performer at your local game night

Generally for Standard sets, spoilers last for two weeks and end the week before the pre-release

Zegana, Utopian Speaker While Zegana, Utopian Speaker can be used as a merfolk commander, I think it works better when you focus on giving creatures +1/+1 counters

Imprint was a mechanic from Mirrodin block (and later reprinted in Scars of Mirrodin block) where the player had to exile a card when casting the spell (the exiled card came from different places), which then was used as a marker to determine something about the spell