Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)Whenever Silent-Blade Oni deals combat damage to a player, look at that player's hand. You may cast a spell from among those cards without paying its mana cost.
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.)
Exile the top eight cards of your library. You may put a land card from among them onto the battlefield. Until end of turn, for each nonland card type, you may cast a spell of that type from among the exiled cards without paying its mana cost.
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.
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 .
Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle.Draw a card at the beginning of the next turn's upkeep.
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.)