Clockwork Beast Coldsnap then you may put a

then you may put a permanent card with mana value less than or equal to the number of lands you control from your hand onto the battlefield tapped

Flying Whenever a source you control deals damage to you

you can't be attacked except by creatures with flying and/or islandwalk

each player may attack only the nearest opponent in the last chosen direction and planeswalkers controlled by that opponent

convert Optimus Prime

Clockwork Beast Coldsnap then you may put aThis creature enters with seven +1 +0 counters on it. At end of combat, if this creature attacked or blocked this combat, remove a +1 +0 counter from it. {X}, {T}: Put up to X +1 +0 counters on this creature. This ability can't cause the total number of +1 +0 counters on this creature to be greater than seven. Activate only during your upkeep.