So, I start every deck at 40 Lands (and these days, frequently, 10 mana ramp spells for a total of 50% mana in my decks)
At the beginning of each end step, if you gained 3 or more life this turn, create a 3/3 white Bird creature token with flying and "Whenever this token attacks, target attacking creature gains flying until end of turn." Legendary Creature - Bird Noble King of the Oathbreakers Flying Whenever King of the Oathbreakers or another Spirit you control becomes the target of a spell, it phases out
Sentinel Sarah Lyons doesn't have to have been on the battlefield at the point in the turn where an artifact entered the battlefield under your control
This card is very powerful because it asks very little of you, and the more cards you draw, the better
Below are also some additional ways that you can get more cards in MTG Arena