mtg lotr commander deck builds Rankings for All 123 Lord

Vivi Ornitier's effect is so good, and can be copied onto other creatures (something Izzet Cauldron decks do in Standard), so they too can provide mana to make for explosive turns where you can play your entire hand and draw a bunch of cards

It even has a great activated ability that buffs all your soldiers with +1/+1 until end of turn for just mana and tapping the Beachhead

Pair her with Spike Feeder in a Selesnya shell and you can remove a counter to gain two life, which triggers the Archangel, which replaces the counter you just spent

Diablo has a strong ability that lets you draw cards passively, and even its main set version will probably cost quite a bit for a while on the singles market

The more spells you've slung that turn, the more fresh cards you get back