Gyre Sage [March of the Machine Commander] Phyrexian God You may cast spells from

You may cast spells from among those cards for as long as they remain exiled

or whatever extensive research you've done and can show that they're from that plane

Lorien Lieutenant enters the battlefiels with X +1/+ counters on it

you may search your library for a Plains card

Bird Element: Wind Class: Tamer Reserve Cost: 3 Power: 2 Life: 2 True Sight

Gyre Sage [March of the Machine Commander] Phyrexian God You may cast spells fromSet: March of the Machine Commander Type: Creature Elf Druid Rarity: Rare Cost: {1}{G} Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1 +1 counter on this creature.) T: Add G to your mana pool for each +1 +1 counter on Gyre Sage.