mtg marvel secret lair groot cards Abundant (Growth) hidden card | Kieran Elmer You may have Masterwork of Ingenuity enter as a copy of any Equipment on the battlefield. Abundant Groot (Abundant Growth)

But you can season to taste depending on what you think might work well in your deck

Skyshroud Poacher Skyshroud Poacher has an incredibly powerful tutor ability, effectively bringing the rebel template to a different archetype

Sylvan Library is a classic repeatable card draw engine, and can net you an extra two cards per turn (provided you have the life to pay for it)

4 mana draw 4 at instant speed seems VERY good

You may do several things during the main phase

In fact, its probably more useful to think of the archetype as Grixis Delirium and view the individual madness spells or graveyard payoffs as interchangeable tools that your discard engine can utilize