Plains

Equipped creature gets +2/+2. Equip 2 (2: Attach to target creature you control. Equip only as a sorcery.)

R: This creature gets +1/+0 until end of turn. Mountaincycling 2 (2, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)

Flying When this creature enters, reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.

R, Sacrifice this creature: It deals 6 damage to each creature and each player.

This creature can't be blocked by creatures with flying. 2R: Until end of turn, target creature gets +0/+2 and gains "R: This creature gets +1/+0 until end of turn."

Flying When this creature enters, scry 3. (Look at the top three cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Enchant creature As long as enchanted creature is white, it gets +1/+1 and has lifelink. (Damage dealt by the creature also causes its controller to gain that much life.) As long as enchanted creature is blue, it gets +1/+1 and can't be blocked.

This creature gets +0/+1 for each Mountain you control.