As you start having more cards in your Inkwell, then switch to adding low-cost cards so you can play your most powerful Characters and Items
Speaking of Magic heaven, we can assume thanks to the Flotilla, Merfolk, and a few cards from here in Mirage, theres a whole Sphere dedicated to Goblins who got too close to water: Quick, Rhirhokteach me to swim!Makht, goblin casualty Turn your back for a second and they just vanish
Glacial Wall
10 Harsh Sustenance Token decks in W/B have been increasingly respectable as a thing since Innistrad block
Mangara, the Diplomat With [c]Managara, the Diplomat[/c] in play, your opponent will be incentivized to hold off on casting multiple spells per turn and attacking with multiple creatures per turn
There is something to be said about the snowball effect of proxies