Burrowing

Enchant creature
Enchanted creature has mountainwalk. (It can’t be blocked as long as defending player controls a Mountain.)

Power Sink

Counter target spell unless its controller pays . If that player doesn’t, they tap all lands with mana abilities they control and lose all unspent mana.

Mesa Falcon

Flying
: Mesa Falcon gets +0/+1 until end of turn.

Howling Mine

At the beginning of each player’s draw step, if Howling Mine is untapped, that player draws an additional card.

Sage Owl

Flying
When Sage Owl enters the battlefield, look at the top four cards of your library, then put them back in any order.

Knight of Stromgald

Protection from white
: Knight of Stromgald gains first strike until end of turn.
: Knight of Stromgald gets +1/+0 until end of turn.

Fowl Play

Enchant creature
Enchanted creature loses all abilities and is a Bird creature with base power and toughness 1/1.

Rally the Troops

Cast this spell only during the declare attackers step and only if you’ve been attacked this step.
Untap all creatures you control.

Nurturing Licid

, : Nurturing Licid loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. You may pay to end this effect.
: Regenerate enchanted creature.