On modern English cards it sits in the bottom-left corner, next to the collector number, for example 25/198
At the same time, damage of a certain type may be reduced if that Pokmon has a resistance against that Attack type
Champion of Lambholt, a $2 reprint that falls in the middle of the pack, is commonly included in all kinds of go-wide creature strategies as a massive threat that makes your army unblockable
This will be a useful tool in eliminating a low HP card early in the battle, ready for Pokmon Flute to revive it
If this is compared to Consecrated Sphinx which generally gets at least two cards and is likely averaging about 5 per cast you can see why I don't think this is over powered
The drawback is that creature has to have a mana cost equal to or lower than the number of lands you have, but thats super easy to get around in green