Mason L Martin's Deck

Treasure

{T}, Sacrifice this token: Add one mana of any color.

Elemental

Zombie

Plant

Marit Lage

Lander

{2}, {T}, Sacrifice this token: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Zombie Druid

Timeless Witness

When Timeless Witness enters the battlefield, return target card from your graveyard to your hand.

Cyberman

(You can cover a face-down creature that has become a Cyberman with this reminder card. It's a 2/2 Cyberman artifact creature.)

Undercity // The Initiative

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.

Rivals of Ixalan Checklist

(You can mark this card to represent a double-faced card in your library or hand.)
☐ Hadana's Climb {1}{G}{U}
☐ Journey to Eternity {1}{B}{G}
☐ Path of Mettle {R}{W}
☐ Profane Procession {1}{W}{B}
☐ Storm the Vault {2}{U}{R}
☐ Azor's Gateway {2}
☐ Golden Guardian {4}

Teval, the Balanced Scale

Mana Spectrum

Card Types

Mana Curve