Scion of the Ur-Dragon + Skithiryx, the Blight Dragon + Moltensteel Dragon

Scion of the Ur-Dragon

Skithiryx, the Blight Dragon

Moltensteel Dragon

How it works

1. Activate Scion of the Ur-Dragon by paying 2.
2. Holding priority, activate Scion of the Ur-Dragon a second time by paying 2.
3. Resolve the first Scion of the Ur-Dragon ability, searching your library for Moltensteel Dragon, putting it into your graveyard, causing Scion of the Ur-Dragon to become a copy of Moltensteel Dragon until end of turn, and shuffling your library.
4. Activate Scion of the Ur-Dragon by paying R/P, giving itself +1/+0 until end of turn.
5. Repeat step 4 five additional times.
6. Resolve the Scion of the Ur-Dragon ability from step 1, searching your library for Skithiryx, putting it into your graveyard, causing Scion of the Ur-Dragon to become a copy of Skithiryx until end of turn, and shuffling your library.
7. If Scion of the Ur-Dragon has summoning sickness, activate it by paying , giving it haste until end of turn.
8. Deal combat damage with Scion of the Ur-Dragon, causing an opponent to get ten poison counters and lose the game due to lethal infect damage.