booster box amonkhet Magic the Gathering: The desert oasis of Amonkhet forges warriors Amonkhet Booster Box | eBay

Evenly Matched is one of the safest field-clearing cards in the game, and works well regardless if you go first or second in the Duel

I dont see Elspeth Resplendent breaking into Standard, much less other constructed formats though

Gavin Verhey from Wizards of the Coast explains Heroes of the Realm 3.0 3.1 3.2 Comment by u/Wizards_Drew on r/magicTCG on Reddit Outside of a unlisted rule for the Commander format that the original recipient of a Heroes of the Realm card is allowed to use it

all we really know is that shes famous for her maritime adventuring

A great card to pair with the Nurse would be Upstart Goblin, which gives a player one draw in exchange for enemies gaining (or this time, losing) 1000 LP

1-4 cards of rarity Rare of higher, 3-5 Uncommon cards, 6-9 Common cards, and 1 Land card (Traditional Foil Land replaces a Land in 20% of boosters)