Flying: This creature gets +1/+0 until end of turn.: Destroy each nonland permanent with mana value X whose controller was dealt combat damage by this creature this turn. Activate only once each turn.
Flash (You may cast this spell any time you could cast an instant.)Enchant creatureEnchanted creature gets +1/+1.Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)
Landfall — Whenever a land you control enters, Baloth Woodcrasher gets +4/+4 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)
Destroy target artifact, target creature, target enchantment, and target land. (You can't cast this spell unless you have legal choices for all its targets.)
Reveal the top four cards of your library. You may put a creature card from among them onto the battlefield. It gains "At the beginning of your end step, return this creature to its owner's hand." Then put the rest of the cards revealed this way on the bottom of your library in any order.
Islandwalk (This creature can't be blocked as long as defending player controls an Island.)Whenever Cold-Eyed Selkie deals combat damage to a player, you may draw that many cards.