This isn't a creature that can technically dish out this ridiculously high damage number if you pull off a multi-card combo or jump through some hoops
Cards like Sun Titan are ideal for this plan, as you can use them to accrue significant value over time through creatures like Eternal Witness, Loyal Retainers, and Wood Elves, fetchlands like Bloodstained Mire, or even previously destroyed mana rocks, so having a big creature or two that can fill this role is very helpful when possible
Each Grass Energy you have then fuels its Syrup Storm attack, which has a base damage of 30 and adds 30 more damage for each Grass Energy attached to all your Pokemon, which can deal an incredible amount of damage after a few extra Energys get out
This will let you see how many wildcards you have available to use to fill out your collection with cards you want
For example, Galadriel will let you either be tempted by the Ring or draw a card, depending on which way the vote goes