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'Whenever another creature you control enters, put a +1/+1 counter on that creature and a +1/+1 counter on this creature.
'Whenever another creature you control enters, put a +1/+1 counter on that creature and a +1/+1 counter on this creature.
'Unleash (You may have this creature enter with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.) Other Dogs you control...
'When Jirina Kudro enters, create a 1/1 white Human Soldier creature token for each time you've cast a commander from the command zone this game. Other Humans you control get...
'({T}: Add {W}.)
'({T}: Add {R}.)
'Villain spells you cast cost {1} less to cast. Whenever another Villain you control enters, you may have it connive. Do this only once each turn. (Draw a card, then...
Swoop down on your gaming table with a terrifying ancient blue dragon, featuring a unique, fearsome weapon grafted to its tail. The ancient blue dragon stands 8 inches tall on...
'When Rakdos Joins Up enters, return target creature card from your graveyard to the battlefield with two additional +1/+1 counters on it. Whenever a legendary creature you control dies, Rakdos...
'Flying
When Jugan dies, you may distribute five +1/+1 counters among any number of target creatures.
'This land enters tapped.
{T}: Add {R}, {G}, or {W}.
'This land enters tapped.
{T}: Add {R}.
{T}, Sacrifice this land: Add {R}{R}.