: Tap all lands you control. This artifact becomes a 3/3 Turtle artifact creature until end of turn.

This spell can't be countered.
Trample, ward , haste
Toxic 4 (Players dealt combat damage by this creature also get four poison counters.)

Sacrifice this creature: Return target legendary creature card from your graveyard to the battlefield. Activate only during your turn, before attackers are declared.

(Gain the next level as a sorcery to add its ability.)
Whenever you cast a noncreature spell, you may discard a card. If you do, draw a card.
: Level 2
Noncreature spells you cast cost less to cast.
: Level 3
If a source you control would deal noncombat damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead.

Equipped creature gets +2/+2.
As long as equipped creature is legendary, it has hexproof. (It can't be the target of spells or abilities your opponents control.)
Equip

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever Nashi deals combat damage to a player, exile the top card of each player's library. Until end of turn, you may play one of those cards. If you cast a spell this way, pay life equal to its mana value rather than paying its mana cost.

This land enters tapped unless you control two or more other lands.
: Add or .

Flying, ward
This creature enters prepared.
Whenever this creature attacks, you may exile eight cards from your graveyard. If you do, this creature becomes prepared.

At the beginning of your upkeep, if twenty or more creature cards are in your graveyard, you win the game.

Whenever this creature deals combat damage to a player, that player reveals their hand. You choose a card from it with the longest name. That player discards that card.

Flying
Noncreature spells you cast cost less to cast.

: Draw a card. Any player may activate this ability but only during their draw step.

, : Target player mills two cards. If two cards that share a color were milled this way, repeat this process.

Flying, trample
Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)
Instant and sorcery spells you cast from your hand have cascade.

The Mindskinner can't be blocked.
If a source you control would deal damage to an opponent, prevent that damage and each opponent mills that many cards.

Defender (This creature can't attack.)
: Regenerate this creature.

Spree (Choose one or more additional costs.)
+ — All creatures lose all abilities until end of turn.
+ — Choose a creature you control. It gains indestructible until end of turn.
+ — Destroy all creatures.

Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.)
Other creatures you control have dethrone.
Whenever a creature you control with a +1/+1 counter on it dies, return that card to the battlefield under your control at the beginning of the next end step.

You have no maximum hand size.
: Add one mana of any color.

Creatures you control have haste.