If you're just going for generic +1/+1 Counter goodness, Mowu, Loyal Companion does Voltron better and Rishkar, Peema Renegade is better at snowballing, and that's without looking outside of Mono Green
If you lose the flip, the next time it would deal damage this turn, prevent that damage
Surveil is a different effect entirely, and closer to self-mill than discard
The Modern combo of Spreading Seas + Master of the Pearl Trident is alive and well here, and the opportunity cost is low enough to make it work
One of the hundreds of infinite combos with this card might make it valuable enough to get your money's worth out of its $100+ price tag
Unfortunately, the spell itself is an overpriced version of Spell Pierce, making it not really worth your mana to play it and pay even more mana to kick it