Training Center enters tapped unless you have two or more opponents.

: Add or .

Activated abilities of creatures you control cost less to activate. This effect can't reduce the mana in that cost to less than one mana.

Flying, vigilance, ward

If you would copy a spell one or more times, instead copy it that many times plus an additional time. You may choose new targets for the additional copy.

, : Copy target instant or sorcery spell you control. You may choose new targets for the copy.

Enchant land

Enchanted land has "Untap this land during each other player's untap step."

Create a 3/3 green Phyrexian Beast creature token with toxic 1. (Players dealt combat damage by it also get a poison counter.)

Corrupted — As long as an opponent has three or more poison counters and Viral Spawning is in your graveyard, it has flashback . (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Enchant creature

Enchanted creature gets +2/+2, has first strike, and can't attack you or planeswalkers you control.

When Wakening Sun's Avatar enters, if you cast it from your hand, destroy all non-Dinosaur creatures.

Vanishing 2 (This creature enters with two time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)

Each creature deals damage to itself equal to its power.

2 — Landfall — Whenever a land enters the battlefield under your control, put a +1/+1 counter on this creature.

4 — Whenever a creature blocks this creature, that creature gets -4/-4 until end of turn.

2 — 4/1

3 — 3/5

Each opponent sacrifices a land of their choice.

At the beginning of your end step, if a land entered the battlefield under your control this turn and you control a prime number of lands, create Primo, the Indivisible, a legendary 0/0 green and blue Fractal creature token, then put that many +1/+1 counters on it. (2, 3, 5, 7, 11, 13, 17, 19, 23, 29, and 31 are prime numbers.)