The full texts of these abilities are "At the beginning of the monarch's end step, that player draws a card" and "Whenever a creature deals combat damage to the monarch, its controller becomes the monarch." If the triggered ability that causes the monarch to draw a card goes on the stack and a different player becomes the monarch before that ability resolves, the first player will still draw the card
Armored Ascension, Strata Scythe and Blackblade Reforged should each pump Reidane up to be at least a three-turn clock
That could be something as big as a 10/10 Eldrazi or a 9/9 Golem, or it could be a simple Treasure token to help you get ahead
First off, this deck's enchantment suite is top-notch
Loot, Exuberant Explorer, Bloodbraid Challenger, Ilharg, the Raze-Boar, and Emergent Woodwurm are all great at sneaking creatures into play without even paying for them