Colorless spells you cast cost {2} less to cast. [+1]: Exile the top card of your library face down and look at it. Create a 2/2 colorless Spirit creature token. When that token leaves the battlefield, put the exiled card into your hand. [–3]: Destroy target permanent that's one or more colors.
Ulasht, the Hate Seed enters with a +1/+1 counter on it for each other red creature you control and a +1/+1 counter on it for each other green creature you control. {1}, Remove a +1/+1 counter from Ulasht: Choose one — • Ulasht deals 1 damage to target creature. • Create a 1/1 green Saproling creature token.
If a Zombie you control would deal combat damage to a player, instead that player mills that many cards. Whenever a creature card is put into an opponent's graveyard from their library, exile that card and create a 2/2 black Zombie creature token.
When Undercellar Sweep enters, you take the initiative. Whenever you attack, if you or a player you're attacking has the initiative, you create two 1/1 white Soldier creature tokens that are tapped and attacking.
You can't enter this dungeon unless you "venture into Undercity." Secret Entrance — Search your library for a basic land card, reveal it, put it into your hand, then shuffle. (Leads to: Forge, Lost Well) Forge — Put two +1/+1 counters on target creature. (Leads to: Trap!, Arena) Lost Well — Scry 2. (Leads to: Arena, Stash) Trap! — Target player loses 5 life. (Leads to: Archives) Arena — Goad target creature. (Leads to: Archives, Catacombs) Stash — Create a Treasure token. (Leads to: Catacombs) Archives — Draw a card. (Leads to: Throne of the Dead Three) Catacombs — Create a 4/1 black Skeleton creature token with menace. (Leads to: Throne of the Dead Three) Throne of the Dead Three — Reveal the top ten cards of your library. Put a creature card from among them onto the battlefield with three +1/+1 counters on it. It gains hexproof until your next turn. Then shuffle.
Spree + {2}{B} — Destroy target creature. + {1} — Create a 1/1 red Mercenary creature token with "{T}: Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery."
"Looks like you've got a train to catch." —Laughing Jasper Flint
Equipped creature gets +3/+3 and has first strike. Whenever a creature dealt damage by equipped creature this turn dies, you may exile that card. If you do, create a 2/2 black Zombie creature token. Equip {2}
At the beginning of your end step, if you planeswalked to Unyaro this turn, untap all creatures. They phase out until a player planeswalks. Whenever chaos ensues, create two 2/2 white and blue Knight creature tokens with vigilance.
Disguise {1}{W} When Unyielding Gatekeeper is turned face up, exile another target nonland permanent. If you controlled it, return it to the battlefield tapped. Otherwise, its controller creates a 2/2 white and blue Detective creature token.
At the beginning of combat on your turn, put an oil counter on Urabrask's Forge, then create an X/1 red Phyrexian Horror creature token with trample and haste, where X is the number of oil counters on Urabrask's Forge. Sacrifice that token at the beginning of the next end step.
Whenever you cast a Myr spell, create a 1/1 colorless Myr artifact creature token. At the beginning of combat on your turn, untap each Myr you control. {W}{U}{B}{R}{G}, {T}: Put three +1/+1 counters on each Myr you control. Activate only during your turn.
Choose two — • Creatures you don't control get -2/-0 until end of turn. • Create a tapped Powerstone token. • Create a tapped 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control." • Scry 1, then draw a card.