The attraction mechanic requires playing lots of weaker cards
For example, if you have six cards in hand as Doctor Octopus's last ability resolves, and you also control Thought Reflection (an enchantment that says "If you would draw a card, draw two cards instead"), you'll end up drawing four cards
(Whenever a creature with myriad attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control
As a reminder, Arena is still in closed Beta, so this information is subject to change: In-Game Currency The in-game currencies are Coins and Gems
I only include cards that are mono-green, although there are interesting multicolor counterspells that dip into green
Divine Visitation Chief: There are so many cards these days that create tons of creature tokens at once, but the majority of those cards create 1/1 creatures with no keywords