Flying, trample
Humans you control get +1/+1.
Coven — Whenever Sigarda attacks, if you control three or more creatures with different powers, look at the top five cards of your library. You may reveal a Human creature card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

This land enters tapped.
: Add .
, , Sacrifice this land: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

This creature enters with seven +1/+0 counters on it.
At end of combat, if this creature attacked or blocked this combat, remove a +1/+0 counter from it.
, : Put up to X +1/+0 counters on this creature. This ability can't cause the total number of +1/+0 counters on this creature to be greater than seven. Activate only during your upkeep.

Destroy target permanent. Its controller creates a 3/3 green Beast creature token.

When this enchantment enters, exile all graveyards.
If a card or token would be put into a graveyard from anywhere, exile it instead.

This creature enters with a +1/+1 counter on it if you control a permanent with mana value 4 or greater.
Whenever you cast a spell with mana value 4 or greater, put a +1/+1 counter on this creature.

Science Teacher — Each Saga spell you cast has replicate. The replicate cost is equal to its mana cost. (When you cast that Saga, copy it for each time you paid its replicate cost. Copies of Saga spells become tokens.)
Doctor's companion (You can have two commanders if the other is the Doctor.)

When this creature enters, create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")

Trample
This creature enters with X +1/+1 counters on it, where X is the total life lost by your opponents this turn.

When this creature dies, it deals damage to any target equal to the number of Zubera that died this turn.

During your turn, as long as Cloud is equipped, it has double strike and indestructible. (This creature deals both first-strike and regular combat damage. Damage and effects that say "destroy" don't destroy this creature.)
Equip abilities you activate that target Cloud cost less to activate.

This land enters tapped.
: Add or .
: This land becomes a 2/2 red and white Ox creature until end of turn. It's still a land.
Whenever this land attacks, put a +1/+1 counter on target creature you control.

Whenever this creature attacks while you don't control another Dinosaur, put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Look at the top five cards of your library, then put them back in any order.

Training (Whenever this creature attacks with another creature with greater power, put a +1/+1 counter on this creature.)
Whenever you cast a creature spell, create a 1/1 green and white Human Soldier creature token with training.

Whenever this creature attacks while you don't control another Dinosaur, put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

First strike
Whenever a Samurai or Warrior you control attacks alone, untap it. If it's the first combat phase of the turn, there is an additional combat phase after this phase.

Creatures can't be the targets of spells.

, : Add .

Draw two cards, then sacrifice a permanent.