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'({T}: Add {G}.)
'As this enchantment enters, choose Mirran or Phyrexian. • Mirran — Whenever you cast an artifact spell, create a 1/1 colorless Myr artifact creature token. • Phyrexian — At the...
{T}: Add one mana of any color.
Tap an untapped legendary creature you control: Add one mana of any color.
'When this enchantment enters, exile all creatures you control. Then create that many 5/5 red Dragon creature tokens with flying. When this enchantment leaves the battlefield, sacrifice all Dragons you...
'Flying
{R}: This creature gets +1/+0 until end of turn.
'{T}: Add {C}{C}.
'Destroy all creatures.
This land enters tapped unless you control an Island or a Swamp.
{T}: Add {U} or {B}.
'Flash When this artifact enters during the declare attackers step, you may reselect which player or permanent target attacking creature is attacking. (It can't attack its controller or their permanents.)...
'Constellation — Whenever an enchantment you control enters, put a +1/+1 counter on this creature and draw a card.
Flying
Whenever another nontoken Dragon you control enters, create a 5/5 red Dragon creature token with flying.
{1}{R}: Dragons you control get +1/+0 until end of turn.
'[+1]: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle. [−3]: Target creature gets +X/+X or -X/-X until end of turn, where X...