The Tenth Doctor (Showcase - Surge Foil) IMA Sacrifice an artifact: Put a

Sacrifice an artifact: Put a +1/+1 counter on this creature

Untap them

{T}: Target legendary creature gains first strike until end of turn

Any number of target creatures you control phase out

When The First Doctor enters

The Tenth Doctor (Showcase - Surge Foil) IMA Sacrifice an artifact: Put aAllons y! Whenever you attack, exile cards from the top of your library until you exile a nonland card. Put three time counters on it. If it doesn't have suspend, it gains suspend. Timey Wimey {7}: Time travel three times. Activate only as a sorcery. (For each suspended card you own and each permanent you control with a time counter on it, you may add or remove a time counter. Then do it two more times.)