mtg arena card draw Solid for black in limited 6/6 flyer for 5 mana

While Poison certainly has some detractors, the mechanic is also quite popular, as evidenced by the recent price rise of this Poison Counter generating card

And if you cast it with 6 mana, you can swing in for that much and, in turn, swing the game directly in your favor with a 3 card draw and gaining 3 life

At time of writing, the regular version is $2.79 and the full art version is $3.99, but the prerelease promo is the cheapest at only $1.99

It can be done at instant speed as well, meaning you'd be able to use its effect before your turn to get to use it twice

For example, Forge Anew is a gamechanger for this and all equipment decks