Oknahm, Battlefield Warlord

Other creatures you control have Outlast {g}
({g}, {t}: Put a +1/+1 counter on this creature.
Outlast only as a sorcery.)
At the beginning of your upkeep, proliferate.
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"I stand with my army, ready for the battle that has
yet to come, prepared for anything. And if for any
reason we're unprepared, we'll improvise."