Sarkhan, Soul AflameDragon spells you cast cost less to cast. Whenever a Dragon you control enters, you may have Sarkhan, Soul Aflame become a copy of it until end of turn, except its name is Sarkhan, Soul Aflame and it's legendary in addition to its other types.

Attacking creatures you control have deathtouch

({W/P} can be paid with either or 2 life

Last of the Abzan enters with three +1/+1 counters on it

you draw that many cards

Put those cards onto the battlefield

you gain that much life

Sacrifice this land: Search your library for a Swamp or Mountain card

When Omnath

exile cards from the top of your library until you exile a nonland permanent card

you may discard your hand

If you discarded a nonland card

You create a number of 1/1 blue Faerie Dragon creature tokens with flying equal to the result