Arid Mesa - Modern Masters 2017 (MM3){T}, Pay 1 life, Sacrifice Arid Mesa: Search your library for a Mountain or Plains card, put it onto the battlefield, then shuffle.

so build camps to house

Ally of Zendikar becomes a 5/5 Human Soldier Ally creature with indestructible that's still a planeswalker

even the destructive ones

With practice

{T}: Add {C}

Whenever it deals combat damage to a player this turn

If a player would draw a card

"Only when we journey into the unknown can we find the impossible

Flying Delve (Each card you exile from your graveyard while casting this spell pays for {1}

(You see all cards that player could see and make all decisions for the player

you may tap or untap target permanent

Bathed in deep crimson