Viktor, The Machine Herald

Reach
When Viktor, The Machine Herald enters the battlefield, create a Hex Core Emblem with
"Give Viktor, the Machine Herald +X/+X where
X is the number of counters on this emblem.
Add 1 counter for every 2 mana spent on an
instant or sorcery, {3}: Add 1 counter to the
emblem."
"Join the glorious evolution."