Yule Ooze [Happy Holidays] League Tokens 2014 whenever either of those creatures

whenever either of those creatures deals combat damage

Set: Fifth Dawn Type: Artifact — Equipment Rarity: Uncommon Cost: {0} Equipped creature has "{T}: Add one mana of any color

It can't be regenerated

defending player sacrifices four permanents

Yule Ooze [Happy Holidays] League Tokens 2014 whenever either of those creaturesSet: Happy Holidays Type: Creature Ooze Rarity: Rare Cost: {2}{R}{G} At the beginning of your upkeep, destroy another nonland permanent chosen at random, then put a number of +1 +1 counters on Yule Ooze equal to that permanent's converted mana cost. {R}{G}, Eat some food: Regenerate Yule Ooze. It loves having family for dinner.