haystack mtg card | Secret Lair (Treat it and anything attached to it as though they dont exist until your next turn.) Haystack | Universes Beyond: Assassin's

At the moment, disruptive spells like Thoughtseize and Hymn to Tourach are actually pretty great in Legacy

For instance, in an Archimandrite deck you could gain a bunch of life in your upkeep and first main phase to add a big +X/+0 buff to your commander, then use Alteration to turn it into Giggling Skitterspike

There might not be many ways to cheaply farm mutate triggers right now, but well see whats possible down the line

I believe it was Richard Garfield's way of creating juiced, above-the-line power level cards with an ongoing drawback to enable a balanced card

Each Myr you have that produces mana can produce mana twice in the same turn, so that allows for a lot of mana producing and color fixing

Once Isshin is in play, every creature with an attack trigger becomes way more powerful