Flying, haste When Karrthus, Tyrant of Jund enters, gain control of all Dragons, then untap all Dragons. Other Dragon creatures you control have haste.
[+1]: Untap target Mountain. It becomes a 4/4 red Elemental creature until end of turn. It's still a land. [–2]: Add {R} for each Mountain you control. [–5]: You get an emblem with "Mountains you control have '{T}: This land deals 1 damage to any target.'"
At the beginning of your upkeep, create a 2/2 green Wolf creature token. {T}: Tap all untapped Wolf creatures you control. Each Wolf tapped this way deals damage equal to its power to target creature. That creature deals damage equal to its power divided as its controller chooses among any number of those Wolves.