Starting with the number 1 or 0 (this is up to whoever starts the color off), the number must be on the card, but not in a mana cost or name. Next card uses the next number up until you hit 9 (or whatever), then go to the next color.
So if you were doing the number 3, you could have:
“Gain 3 life”
“Draw three cards”
A creature with power or toughness 3
A planeswalker with 3 starting loyalty, or a +3 or -3 loyalty ability
You could not have:
A card named “Three Mice”
A card with an activated ability that costs
Color order is as follows (though if players protest we could do the full nine color cycle like the rarity game)
White
Blue
Black
Red
Green
Multicolor and/or hybrid
Colorless and/or land
Starting off with white zero
Outpost -
Creature - Wall
Defender
: Target creature gains vigilance until end of turn.”I can see my house from here!”
0/3
.
