Would I go for Swords to Plowshares first
P/T Number 225 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Standard Rulings (4/17/2020) If a card in a player's deck or a permanent on the battlefield has in its mana cost, X is considered to be 0
By substituting some cards in your deck for others with bonus life gain as well you can keep a very high overall power level and still have a good game against the agro decks
It lets you place an additional card from your hand into your inkwell face down and draw one card, making it perfect for quickly stacking resources to summon heavy hitters