You and target opponent each flip a coin. Mana Clash deals 1 damage to each player whose coin comes up tails. Repeat this process until both players' coins come up heads on the same flip.

This creature gets +1/+1 for each creature card in your graveyard.
, , Sacrifice another creature: Search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle. Activate only as a sorcery.

Whenever this creature becomes blocked, you may draw two cards.

Exile all creatures.
Delirium — Create a 4/4 white Angel creature token with flying if there are four or more card types among cards in your graveyard.

: Add .
, : Add , , or .

: Add .
, , Sacrifice a token: Draw a card.
, , Pay 1 life: Create a 1/1 blue Fish creature token.
, : Create a Treasure token.

Search your library for up to X creature cards with different names that each have mana value X, reveal them, put them into your hand, then shuffle.

Trample
Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)
Whenever this creature deals combat damage to a player, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

This creature can't be blocked.
, Sacrifice this creature: Target creature can't be blocked this turn.

When this artifact enters, put a -1/-1 counter on target creature.
, : Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

At the beginning of your upkeep, each opponent loses X life and you scry X, where X is the number of Zombies you control.
: Exile target creature card from a graveyard. Create a token that's a copy of it, except it's a 4/4 black Zombie.
When The Scarab God dies, return it to its owner's hand at the beginning of the next end step.

Flying
Whenever one or more other creatures you control with power 2 or less enter, draw a card. This ability triggers only once each turn.

As this land enters, you may reveal an Elf card from your hand. If you don't, this land enters tapped.
: Add or .

Flying
You may have this creature enter as a copy of any creature on the battlefield with mana value less than or equal to the amount of mana spent to cast this creature, except it's a Bird in addition to its other types and it has flying.

Flying, trample
When Atsushi dies, choose one —
• Exile the top two cards of your library. Until the end of your next turn, you may play those cards.
• Create three Treasure tokens.

All Slivers have "Pay 2 life: Return this permanent to its owner's hand."

When Mjölnir enters, attach it to target legendary creature you control.
Whenever equipped creature attacks, tap target creature defending player controls and put a stun counter on it. Then Mjölnir deals damage to each opponent equal to the number of tapped creatures that opponent controls.
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.

Create X 1/1 white Warrior creature tokens.