Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control. It can attack and no matter when it came under your control.)Equip (: Attach to target creature you control. Equip only as a sorcery.)
Enchant creatureEnchanted creature has base power and toughness 8/8 and has "Whenever this creature attacks, you may tap target creature with power 8 or less."Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)
You may have Estrid's Invocation enter as a copy of an enchantment you control, except it has "At the beginning of your upkeep, you may exile this enchantment. If you do, return it to the battlefield under its owner's control."
When Avenger of Zendikar enters, create a 0/1 green Plant creature token for each land you control.Landfall — Whenever a land you control enters, you may put a +1/+1 counter on each Plant creature you control.
+2: Untap each enchanted permanent you control.−1: Create a white Aura enchantment token named Mask attached to another target permanent. The token has enchant permanent and umbra armor.−7: Mill seven cards. Return all non-Aura enchantment cards from your graveyard to the battlefield, then do the same for Aura cards.Estrid, the Masked can be your commander.
Improvise (Each artifact you tap after you're done activating mana abilities pays for .)Reveal the top X cards of your library. You may put any number of artifact cards with mana value X or less from among them onto the battlefield. Then put all cards revealed this way that weren't put onto the battlefield into your graveyard.
Ravenous Slime can't be blocked by creatures with power 2 or less.If a creature an opponent controls would die, instead exile it and put a number of +1/+1 counters equal to that creature's power on Ravenous Slime.
Arixmethes, Slumbering Isle enters tapped with five slumber counters on it.As long as Arixmethes has a slumber counter on it, it's a land. (It's not a creature.)Whenever you cast a spell, you may remove a slumber counter from Arixmethes.: Add .
Enchant creatureEnchanted creature gets +1/+1 and has "Whenever this creature deals damage to an opponent, you may draw a card."Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)
Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)Enchanted creature gets +4/+4.Whenever an enchanted creature or enchantment creature you control attacks, draw a card.
Choose a permanent type. Return all cards of the chosen type from your graveyard to your hand.Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)
