Flying, vigilance, deathtouch, lifelinkAt the beginning of your end step, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Vigilance, hasteAs Saskia the Unyielding enters, choose a player.Whenever a creature you control deals combat damage to a player, it deals that much damage to the chosen player.
TrampleWhenever Yidris, Maelstrom Wielder deals combat damage to a player, as you cast spells from your hand this turn, they gain cascade. (When you cast the spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)
When Breya, Etherium Shaper enters, create two 1/1 blue Thopter artifact creature tokens with flying., Sacrifice two artifacts: Choose one —• Breya deals 3 damage to target player or planeswalker.• Target creature gets -4/-4 until end of turn.• You gain 5 life.
At the beginning of your end step, draw a card. Each player may put a land card from their hand onto the battlefield, then each opponent who didn't draws a card.