[-] [+]

The mechanical theme is limited resources, hence: WUB Historic - Sagas and Artifacts as a resource. UBR Exploit - Creatures are a temporary resource. BRG Berserk - Pressing a temporary advantage. RGW Struggle - Using +1/+1 counters as a resource. GWU Eulogy - Using the graveyard as a resource.

Shard Mechanics

{w}{u}{b} Wizards College

Historic, returning from Dominaria. One change is that each color will have a special focus on one of the three historic parts.

­{w} cares more about Sagas and Planeswalkers.

­{u} cares more about artifacts.

­{b} cares about historic cards in the graveyard.

{u}{b}{r} Sengir Barony

Exploit, returning from Dragons of Tarkir.

In lieu of "Whenever ~ exploits a creature", cards at uncommon or rare may have "Whenever you sacrifice a creature, EFFECT. If that creature was exploited, ADDITIONAL EFFECT."

{b}{r}{g} Koskun Rebels

{r}{g}{w} Folk of An-Havva

Zeal (Whenever this creature deals combat damage to an opponent or planeswalker, if it has no +1/+1 counters on it, put a +1/+1 counter on it.)

Zeal is to Renown as Adapt is to Monstrous.

Creatures with Zeal may be able to use +1/+1 counters as a resource.

{g}{w}{u} Aysen Abbey

Eulogy / Memorialize, a new graveyard mechanic

Whenever ~ (trigger) or becomes memorialized, (effect).

Eulogy COST (COST, Exile this card from your graveyard: It becomes memorialized. Activate this ability only during your turn.)